| "All I had left were my words" : The widow's curse in nineteenth- and twentieth-century Ireland | Quinn, E. Moore | Article in Book | Palgrave Macmillan | 2015 |
| "All the themes of hagiography" : an turas Cholm Cille revisited | Quinn, E. Moore | Article in Journal | | 2010 |
| "Auld Licht, New Licht" and original secessionists in Scotland and Ulster | Smith, Richard M. | Article in Journal | | 2006 |
| "De Bello Clerico" : Fr Batt O'Connor's attack on the evangelical missionaries | O'Reilly, Hugh | Article in Journal | | 2013 |
| "Disturbing the Complacency of Religion"? The Evangelical Crusades of Dr Billy Graham and Father Patrick Peyton in Britain, 1951-54 | Harris, AlanaSpence, Martin | Article in Journal | | 2007 |
| "Exploited with fury on a thousand platforms" : Women, Unionism and the Ne Temere Decree in Ireland, 1908–1913 | MacPherson, D. A. J. | Article in Book | Cambridge Scholars | 2009 |
| "High days and Holy days" : St Patrick's Day in the North East of England, c.1850–1900 | Allen, Joan | Article in Book | Cambridge Scholars | 2009 |
| "If a house be divided against itself that house cannot stand" : the Church of Ireland and the political border, 1949-73 | Ó Corráin, Daithí | Article in Book | Manchester University Press | 2008 |
| "It is no ordinary child I foster in my little cell" : fostering the Christ Child in medieval Ireland | O'Donnell, Thomas C. | Article in Journal | | 2017 |
| "No, we are not Catholics" : intersections of faith and ethnicity among the second-generation Protestant Irish in England | Morgan, SarahWalter, Bronwen | Article in Book | Manchester University Press | 2008 |
| "Reign of blood" : aspects of devotion to the wounds of Christ in late medieval Gaelic Ireland | Ryan, Salvador | Article in Journal | | 2002 |
| "Space of time or distance of place" : Presbyterian diffusion in south-western Scotland and Ulster, 1603-1690 | Vann, Barry Aron | Thesis | | |
| "Survival of the fittest" : Protestant dissenting congregations of south Munster, 1660-1810 | Butler, David J. | Article in Book | Manchester University Press | 2008 |
| "The cursed cup hath cast her down" : constructions of female piety in Ulster evangelical temperance literature, 1863-1914 | Brozyna, Andrea Ebel | Article in Book | Queen's University Belfast, Institute of Irish Studies | 1994 |
| "The cursed cup hath cast her down" : constructions of female piety in Ulster evangelical temperance literature, 1863-1914 | Broznya, Andrea Ebel | Article in Book | Queen's University of Belfast, Institute of Irish Studies | 1994 |
| "The gates were shut" : Catholics, chapels, and power in late nineteenth-century Ireland | Delay, Cara | Article in Journal | | 2010 |
| "The Most Singular and Eccentric Sect of this Generation" : The White Quakers of Ireland, c.1840–1854 | Gregory, James | Article in Book | Cambridge Scholars | 2009 |
| "The right to labour, love and pray" : the creation of the ideal Christian woman in Ulster Roman Catholic and Protestant religious literature, 1850-1914 | Brozyna, Andrea Ebel | Article in Journal | | 1997 |
| "The wee church on the hill" : a history of Drumtullagh Church, 1841-1991 | Quigg, L. F. | Monograph or Collective Volume | Impact Printing (Coleraine and Ballycastle) [Printer] | 1991 |
| "There must have been something in it..." | Watters, Frank | Article in Journal | | 2000 |
| "Were you at the rock?" the history of mass rocks in Ireland | Nugent, Anthony | Monograph or Collective Volume | Liffey Press | 2013 |
| 'A gay and flattering world' : Irish Baptist piety and perspective, 1650-1780 | Herlihy, Kevin | Article in Book | Four Courts Press | 1996 |
| 'A platform upon which all could unite'? : temperance in Ulster and the Irish Temperance League, 1858-1914 | Campbell, Orfhlaith | Thesis | | |
| 'A sound and scriptural union' : an examination of the origins of the Assemblies of God of Great Britain and Ireland during the years 1920-1925 | Massey, R. D. | Thesis | | |
| 'Aighneas an Choirp leis an Anam', An Leagan is Luaithe sa Bhreatnais | Caerwyn Williams, J. E. | Article in Book | Clóchomher Tta | 1997 |
| 'An creideamh agus Ghaeilge fite fuaite ina chéile' | Ua Cnáimhsí, Pádraig | Article in Book | Coiscéim | 1996 |
| 'An excuse for not timely writing the Antichristian Creed' : a poem by Donnchadh Ruadh Mac Conmara | Mac Peaircín, Liam, 1938-2019 | Article in Journal | | 2006 |
| 'And the word was made flesh' | Kenneally, Christy | Article in Book | Veritas | 2013 |
| 'Bagairt' an teangmhála teanga : creideamh on phobail i dtace le measca na Gaeilge agus an Bhéarla | Ní Ghearáin, Helena | Article in Book | | 2018 |
| 'Deep solitude and silent cells' - John Windele's 1851 visit to Skellig Michael | Crowley, John | Article in Book | | 2022 |
| 'Drinking the waters': Balneotherapeutic medicine in Ireland, 1660-1850 | Kelly, James, 1959- | Article in Journal | | 2009 |
| 'Eagla an Ghallsmacht': the religion and politics of Irish catholics,1620s-1670s | Kennedy, Mary Catherine | Thesis | | 1987 |
| 'Inoperative but insulting' : residues of the penal laws, 1829-1920 | Costello, Kevin | Article in Book | | 2021 |
| 'Irish pilgrimage' : a romantic misconception | Hayes-Healy, Stephanie | Article in Book | | 2013 |
| 'Modest and civil people': religion and society in medieval Galway | Moss, Rachel ; Ó Clabaigh, Colmán | Monograph or Collective Volume | Four Courts Press | 2022 |
| 'My experiences in the 1916 Rising' by Father Columbus Murphy, O,F,S,C, 29 July 1916 | Murphy, Columbus, O.F.S.C. | Article in Journal | | 2016 |
| 'Once I heard a story .. from scripture does it come' : biblical allusions in Irish bardic religious poetry | Ryan, Salvador | Article in Book | | 2013 |
| 'Patrick, the first churchman' in the Protestant vision of Ernest Bateman of Booterstown (1886-1979) | Biagini, Eugenio F. | Article in Book | | 2017 |
| 'Peregrinatio pro christo' : pilgrimage in the Irish tradition | Maher, Michael | Article in Journal | | 1999 |
| 'Publick and solemn acknowledgements': occasional days of state-appointed worship in Ireland, 1689-1702 | Forbes, Suzanne | Article in Journal | | 2013 |
| 'Reconciling memories' reconsidered: reflections on a 1988 Irish reconciliation classic in light of three decades of scholarship and political experience | Liechty, Joseph | Article in Book | | 2017 |
| 'Slow and cold in the true service of God' : popular beliefs and practices, conformity and Reformation in Wales, c.1530-1600 | Olson, Jatharine K. | Article in Book | | 2014 |
| 'Some taste therefore of that heavenly food' : the Reformation and the book in Irish, 1567-1960 | Caball, Marc | Article in Book | | 2025 |
| 'That nost serious duty' : Catholic preaching in Ireland, 1760-1840 | Ryan, David Edward | Thesis | | 1998 |
| 'The angel of Andersonville' : Father Peter Whelan (1802-70) | Gleeson, David T. | Article in Book | | 2015 |
| 'The Church-Going Bell': a sermon preached in the Parish church of S. Patrick, Coleraine, at the dedication of a memorial peal of bells on Easter Day, April 2, 1893 | Lawlor, H. J. (Hugh Jackson), 1860-1938 | Monograph or Collective Volume | W. & G. Baird [Printer] | 1893 |
| 'The most contentious of terms' : towards a new understanding of late medieval 'popular religion' | Ryan, Salvador | Article in Journal | | 2003 |
| 'The sober duties of life': the domestic and religious lives of six Quaker women in Ireland and England, 1780-1820 | McLoughlin, Riana | Thesis | | 1993 |
| 'This Booke hath bred all the quarrel': The Bible in the 1641 Depositions | Anderson, Bradford A. | Article in Book | | 2018 |
| 'To forge or to follow': women of the Church of Ireland in Dublin, 1910-1925 | Walsh, Oonagh | Thesis | | 1999 |
| 'We shall find a way through' : the Church of Ireland, state prayers and liturgical realities | Ó Corráin, Daithí | Article in Book | | 2006 |
| 'Wily women of God' in Breifne's late medieval and early modern devotional collections | Ryan, Salvador | Article in Book | | 2009 |
| 'Women's work for women' : the Irish Presbyterian Zenana Mission, 1874-1914 | Hill, Myrtle | Article in Book | | 2005 |
| 12 February 1922: The Nicholson Revival : ‘Divine Dynamite’: Popular Protestantism in Belfast | Holmes, Andrew R. | Article in Book | | 2022 |
| 150th anniversary of Kilcronaghan Parish Church | Richardson, H. Hilary | Monograph or Collective Volume | Kilcronaghan Parish Church | 2008 |
| 75 years of the Legion of Mary | Kennedy, Kieran A. | Article in Journal | | 1997 |
| 75th anniversary year (1933-2008) : The story of Saint Martin's Church and the Southern Church mission to Ballymacarrett | McMullan, Gordon | Monograph or Collective Volume | [St Martin's Church] | 2008 |
| A Basis for Celtic Revival Art in Scotland | MacDonald, Murdo | Article in Book | Edinburgh University Press | 2025 |
| A brief account of ... the change in Religious Opinion now taking place in Dingle, and the west of the county of Kerry, Ireland | Thompson, A. M., Mrs | Monograph or Collective Volume | | 1846 |
| A brief history of the Church of St. Patrick, Coleraine, with some account of its proposed renovation | [St. Patrick's Church, Coleraine] | Monograph or Collective Volume | Constitution Office [Printer] | 1883 |
| A brief history of the Parish of St. Paul's, Gilford, Diocese of Dromore, 1869-1999 | Patterson, A. P. | Monograph or Collective Volume | [The author] | 1999 |
| A British myth of origins? | Carey, John | Article in Journal | | 1991 |
| A broken hallelujah : the making of a Christian Brother | Leavy, Lorcan | Monograph or Collective Volume | History Press | 2011 |
| A celebration of Sligo : first essays for Sligo Field Club | | Monograph or Collective Volume | Sligo Field Club | 2002 |
| A century of Christian witness in Dublin Road, Belfast, 1889-1989 | Shaftsbury Square Reformed Presbyterian Church | Monograph or Collective Volume | Cameron Press for the Session and Committee of Shaftsbury Square Reformed Presbyterian Church, Belfast | 1989 |
| A challenge to democracy : militant Catholicism in modern Ireland | Curtis, Maurice | Monograph or Collective Volume | History Press | 2010 |
| A challenge to partition : Methodist open-air work in Independent Ireland, 1922-1962 | Biagini, Eugenio F. | Article in Journal | | 2014 |
| A charge delivered to the clergy and churchwardens at his Primary Visitation | Bernard, J. H. (John Henry), 1860-1927 | Monograph or Collective Volume | Church of Ireland Printing & Publishing Co. | 1911 |
| A church in crisis : the Irish Catholic church today | Donnelly, James S., Jr | Article in Journal | | 2000 |
| A Church of Ireland bibliography | | Monograph or Collective Volume | Church of Ireland | 2005 |
| A church's tercentenary : Ballywalter | Stewart, David | Monograph or Collective Volume | [The author] | 1926 |
| A clerical retrospect | Haddock, Josiah | Monograph or Collective Volume | Lurgan Mail Press | 1957 |
| A community of communities together in Europe | Leahy, Brendan | Article in Book | | 2012 |
| A congregatio particularis on Ireland at Propaganda Fide, May 1671 | Giblin, Cathaldus | Article in Journal | | 1978 |
| A cult of Saint Thecla in early medieval Ireland? | Ó Dochartaigh, Caitríona | Article in Book | | 2015 |
| A dictionary of Irish saints | Ó Riain, Pádraig | Monograph or Collective Volume | Four Courts Press | 2011 |
| A dictionary of Irish saints : second edition | Ó Riain, Pádraig | Monograph or Collective Volume | Four Courts Press | 2025 |
| A difficult difference : race, religion and the new Northern Ireland | Geoghegan, Peter | Monograph or Collective Volume | Irish Academic Press | 2010 |
| A Divine Office celebration for the feast of St Canice at Kilkenny Cathedral | Brannon, Patrick | Article in Book | | 2017 |
| A dream comes true... the story of the building of St. Hilda's Parish Chruch | Moore, Edward James | Monograph or Collective Volume | Belfast News Letter Printing Co. [Printer] | 1970 |
| A Dubliner searches for Sodom and Gomorrah | O'Loughlin, Thomas | Article in Book | | 2015 |
| A ghostly experience | Cullen, Alice | Article in Journal | | 1995 |
| A hidden church : the diocese of Achonry 1689-1818 | Swords, Liam | Monograph or Collective Volume | Columba | 1997 |
| A Hidden Church: The Diocese of Achonry, 1689-1818 | Swords, Liam | Monograph or Collective Volume | The Columba Press | 1997 |
| A history of Glencraig Parish | Hill, George W. L.Maconachie, Alwyn | Monograph or Collective Volume | William Trimble [Printer] | 1978 |
| A history of Kilmore parish, County Armagh: a journey through time | Reilly, Patricia | Monograph or Collective Volume | Trimprint | 2009 |
| A history of Methodism in Ireland from Wesley’s death in 1791, to the re-union of Primitive and Wesleyans in 1878 | Binns, June R. | Thesis | | |
| A history of Mullingar Presbyterian Church | Lockington, John W. | Monograph or Collective Volume | The author | 2013 |
| A history of some places of worship in Dublin 4 | Kullmann, Kurt | Article in Journal | | 2009 |
| A history of St George's church, Belfast: two centuries of faith, worship and music | Walker, Brian M. | Monograph or Collective Volume | Ulster Historical Foundation | 2012 |
| A history of St. James' Church, Belfast | | Monograph or Collective Volume | St James's Select Vestry | 2000 |
| A history of St. John's church, Donegore | Bell, Margaret | Monograph or Collective Volume | W. & G. Baird at the Greystone Press, Antrim [printer] | 1988 |
| A history of St. Peter's parish church, Antrim Road, Belfast 1900-2009 | Barton, Brian | Monograph or Collective Volume | Select Vectry of St. Peter's Parish Church | 2009 |
| A history of the Church of Ireland in Dunluce Parish | Boyd, Hugh Alexander | Monograph or Collective Volume | Coleraine Chronicle [Printer] | 1937 |
| A history of the Church of Ireland in Ramoan Parish | Boyd, Hugh Alexander | Monograph or Collective Volume | R. Carswell & Son | 1930 |
| A history of the Church of Ireland in St. Mary Magdalene parish, Belfast | Leathem, William S. | Monograph or Collective Volume | Nicholson & Bass | 1939 |
| A history of the Church of Ireland in the parish of Ballywillan (Portrush) | Milner, T. W. R. | Monograph or Collective Volume | Display Aids [Printer] | 1972 |
| A history of the Parish of Kilbride (Diocese of Connor) | Cox, Robert R. | Monograph or Collective Volume | [Kilbride Parish] | 1959 |
| A hundred years of life at Grangegorman, 1828-1928 | Campbell, E.H.F. | Monograph or Collective Volume | [The author] | 1928 |
| A hundred years of MSC mission, 1909-2009. Vol 3 | | Monograph or Collective Volume | MSC | 2009 |
| A Latin-Irish commentary on Psalm 68.10 | McLaughlin, Roisin | Article in Book | | 2019 |
| A Leg (or Two) to Stand On: Rethinking the Drinking Horn | de Vegvar, Carol Neuman | Article in Book | Edinburgh University Press | 2025 |
| A light to the world | Horton, Charles | Article in Journal | | 2004 |
| A manuscript missal in the library of the Royal Society of Antiquaries of Ireland | O’Neill, Timothy, 1947- | Article in Journal | | 2018 |
| A Manx sermon from 1696 | Lewin, Christopher | Article in Journal | | 2015 |
| A Martyrology of four cities: Metz, Cologne, Dublin, Lund | | Monograph or Collective Volume | Boydell, for the Henry Bradshaw Society | 2009 |
| A Mass path | Allen, Gregory | Article in Journal | | 2003 |
| A medieval pilgrim : from Tuam to Santiago de Compostela | Clyne, Miriam | Article in Journal | | 1990 |
| A memoir of the late Albert Blest | Motherwell, M. C. | Monograph or Collective Volume | | 1843 |
| A missing Dublin saint | Gillespie, Raymond, 1955-2024 | Article in Book | | 2010 |
| A note on Roland de Burgo alias Burke, Bishop of Clonfert : and the monastery "De Portu Puro" at Clonfert | Blake, Martin J. | Article in Journal | | 1905 |
| A note on the dairteach | Manning, Conleth | Article in Book | | 2015 |
| A notice of St. Patrick's Church, Jordanstown, in the parish of Carnmoney, and diocese of Connor, the first attempt in modern times to revive the Ancient Ecclesiastical Architecture of Ireland: together with brief memoirs of the Irish saints depicted in the windows of its chancel | | Monograph or Collective Volume | Printed for private distribution only. Strangeways & Walden (printers) | 1868 |
| A parish miscellany: a review of Donaghcloney Parish from earliest times to the present day | Haddock, Josiah | Monograph or Collective Volume | Lurgan Mail Press | 1957 |
| A path to perfection : translations from French by Catholic women religious in nineteenth-century Ireland | Milan, Michèle | Article in Book | | 2016 |
| A pattern at Maumean | Inglis, Henry | Article in Journal | | 1993 |
| A Peacock's tale : excavations at Caherlehillan, Iveragh, Ireland | Sheehan, John | Article in Book | | 2009 |
| A personal experience of Christianity, 1912-1987 | Sweetman, Michael, SJ | Article in Journal | | 1986 |
| A pilgrim people : stories from Leamonaghan | | Monograph or Collective Volume | Leamonaghan Parish Millennium Committee | 2000 |
| A Place of Pilgrimage | Scriven, Richard | Article in Book | | 2022 |
| A praise-poem from eleventh-century Armagh | Herbert, Máire | Article in Book | | 2019 |
| A precious relic of Penal times found at Urney Graveyard | Kieran, Rory S. | Article in Journal | | 2008 |
| A ramble : in search of the curious and interesting comprising : a visit to the royal dwelling-place at Rathmore, the Battlefield at Rathbeg, Donegore Moat, the Giant's Grave at Drumagorgon and to a cave-dwelling at Craighall | Smith, W. S. | Monograph or Collective Volume | Alexander Mayne [printer] | 1883 |
| A rhapsody on the carved oak chimney-piece of the assumption of the Blessed Virgin in the Oak Room at Malahide Castle | Byrne, Joseph | Article in Journal | | 1998 |
| A rough field : the story of Garvaghy parish, Co. Down | Musgrave, George,Thompson, Paul | Monograph or Collective Volume | [Garvaghy Parish] | 1999 |
| A saint for eighteenth-century Dublin? Father John Murphy | Barnard, T. C. (Toby Christopher) | Article in Book | | 2016 |
| A seventeenth-century Irish version of the rule of St. Clare : glossarial Index | | Article in Journal | | 1950 |
| A seventeenth-century manuscript report of the Amazon region | Hazard, Benjamin | Article in Book | | 2015 |
| A shining lamp : the oral instructions of Catherine McAuley | Sullivan, Mary C. | Monograph or Collective Volume | Catholic University of America | 2017 |
| A short account of the Duguid Family and of the Adelaide Memorial Church Myshall, Co. Carlow | Anonymous | Monograph or Collective Volume | [privately published] | 1926 |
| A short account of the earlier days of St. Patrick's Cathedral Mission | Monroe, Horace | Monograph or Collective Volume | University | 1904 |
| A short history of Donagh parish | Cotter, J. B. D. | Monograph or Collective Volume | Fermanagh Times | 1966 |
| A short history of Drumgooland parish | Rudd, C. R. J. | Monograph or Collective Volume | Outlook Press [Printer] | 1971 |
| A short history of Duneane parish | Macourt, W. A., Rev. | Monograph or Collective Volume | [Duneane Parish Church] | 1950 |
| A Short history of the Parish of Ballyclug | Mitchell, F. J. | Monograph or Collective Volume | James A. Nelson [printer] | 1944 |
| A short history of the Parish of Dromara Ireland | Long, S.E. | Monograph or Collective Volume | Mourne Observer [Printer] | 1979 |
| A short history of the parish of Kilroot : Diocese of Connor | Rankin, Helen | Monograph or Collective Volume | Renewal Communications Ltd. | 1982 |
| A short visit to the Connemara Missions : a letter to the Rev. John Garrett with a preface by the Lord Bishop of Rochester | Plunket, W.C. | Monograph or Collective Volume | Hatchard | 1863 |
| A sidelight on the Dublin (Whitefriar Street) preaching house in 1789 | Bradshaw, D. B. (David Bigham) | Article in Journal | | 1914 |
| A Sixteenth-Century Visit by Heneas McNiocaill | Ó Cíobháin, Breandán | Article in Book | | 2022 |
| A slighted source : rehabilitating Irish bardic religious poetry in historical discourse | Ryan, Salvador | Article in Journal | | 2004 |
| A social and economic history of Belfast, 1801-1825 | Monaghan, J. J. | Thesis | | |
| A spectacular revelation : Medieval wall paintings at Ardamullivan | Morton, Karena | Article in Journal | | 2001 |
| A study of penitential practice in early medieval Ireland (500-900) | Quartermain, Jeremy A. | Thesis | | 2000 |
| A study of St Patrick's sources | Nerney, D. S. | Article in Journal | | 1949 |
| A study of the Church of Ireland population of Ardfert Diocese 1971 | Robinson, H. W. | Monograph or Collective Volume | H.W. Robisnon | 1972 |
| A supplement to a dictionary of Irish saints containing additions and corrections | Ó Riain, Pádraig | Monograph or Collective Volume | Four Courts Press | 2022 |
| A survey if the IHS ceramic tiles placed on buildings in Galway city in the early 1920s | Fitzgerald, Eamonn | Article in Journal | | 2013 |
| A tale of two churches : St Marck's Church, Parish of Ballymacash. | Kelly, Brian | Monograph or Collective Volume | [Parish of Ballymacash] | 1991 |
| A time and place : two centuries of Irish social life | | Monograph or Collective Volume | National Gallery of Ireland | 2006 |
| A toothache charm in a manuscript fragment of John Lysaght | Flahive, Joseph J. | Article in Book | | 2019 |
| A tour of the old St. Michael's Church, Dun Laoghaire | Clarke, Carl | Article in Journal | | 2009 |
| A troubled Zion : the Anglican experience in upper Canada, 1791-1854 | Fahey, Curtis | Monograph or Collective Volume | Carleton University Press | 1981 |
| A vision of the dispossessed? : popular piety and revolutionary politics in the Irish land war 1879-82 | Bew, Paul | Article in Book | | 1997 |
| A voyage to see scenes of Our Saviour's life and passion : Richard Pococke's eastern journey (1737-41) | Finnegan, Rachel | Article in Book | | 2015 |
| A weapon in the struggle? Loyalist paramilitarism and the politics of auto/biography in contemporary Northern Ireland | Hopkins, Stephen | Article in Book | | 2008 |
| A window on Catholic funeral rites in 1950s Ireland | Jones, Patrick | Article in Book | | 2016 |
| A world made whole : the rediscovery of the Celtic tradition | De Waal, Esther | Monograph or Collective Volume | Fount | 1991 |
| Abhlann | Ó Dochartaigh, Caitríona | Article in Book | | 2012 |
| About Killead and Gartree | | Monograph or Collective Volume | [The author] | 2003 |
| Action and reaction : Catholic lay organisations in Dublin in the 1920s and 1930s | Dunne, Eamonn | Article in Journal | | 1994 |
| Acts of "national communion" : the centenary celebrations for Catholic emancipation, the forerunner of the Eucharistic Congress | McIntosh, Gillian | Article in Book | | 1999 |
| Address delivered at the Opening of the Synod of Clogher, on Friday, September 27th,1895 | Stack, Charles Maurice | Monograph or Collective Volume | William Mc Gee | 1895 |
| Administration and rubrication : the Christ Church Psalter in context | Refaussé, Raymond | Article in Journal | | 2004 |
| Adomnan and the holy places | O'Loughlin, Thomas | Monograph or Collective Volume | T & T Clark | 2007 |
| Adomnán and the Holy Places : the perceptions of an Insular monk on the locations of the biblical drama | O'Loughlin, Thomas | Monograph or Collective Volume | T&T Clark | 2007 |
| Afterword. Confraternities, social capital and civil society : comparisons, contexts and questions | Terpstra, Nicholas | Article in Book | Columba | 2012 |
| Ag Críost an síol (To Christ be the seed) | Ní Riain, Nóirín | Article in Book | | 2012 |
| Agherton Parish, Portstewart : a brief history | Thomas, Avril | Monograph or Collective Volume | Display Aids | 1996 |
| Aigheas creidimh in Uachtar Ard sa 19ú haois | Ní Shuilleabháin, M. | Article in Journal | | 1978 |
| Aisling na Maighdine: The Virgin’s dream in Irish oral tradition | McArdle, Denis | Article in Book | | 2019 |
| Alexander McWhidd, c.1610-c.1690 | Barron, T. J. | Article in Journal | | 1981 |
| All Saints Church, Clooney 1867-1967 : centenary news | Anonymous | Monograph or Collective Volume | [All Saints Church, Clooney]|[Printed by A. Emery] | 1967 |
| All Saints, Cootehill, 1819-2019 : a history of the church, the parish and its people | Smyth, Jonathan A. | Monograph or Collective Volume | Cumann Seanchais Bhreifne | 2019 |
| All things are ready : a sermon preached on the occasion of the re-opening of St. Patrick's Cathedral on the Festival of St. Mattias, 1865 | Plunket, William Conyngham | Monograph or Collective Volume | Hodges, Smith | 1865 |
| Altars, Graves and Cenotaphs: Leachta as Foci for Ritual in Early Medieval Ireland | Ó Carragáin, Tomás | Article in Book | | 2021 |
| Amhráin i dtaobh sagart | Ó Murthuile, Seosamh | Article in Journal | | 1973 |
| An ancient pilgrimage 'relic-road' in north Clare? | Harbison, Peter | Article in Journal | | 2000 |
| An anti-pope's personal private prayer book | Kane, Eileen | Article in Book | | 2016 |
| An archaeology of Augustinian nuns in later medieval Ireland | Collins, Tracy | Article in Book | | 2019 |
| An Bhrídeog | Ó Duinn, Seán | Article in Journal | | 1998 |
| An Choróin Mhuire im iar-thuaisceart Thir Chonaill sa bhfichuí haois : suíomh do dheabhoid Mheánooiseach Euorpach, i geráifeacht agus saol traidisiúntu na ndaoine | Lysaght, Patricia | Article in Journal | | 1995 |
| An chráifeacht cheilteach | Ó Duinn, Seán | Article in Book | | 2013 |
| An crann a chrom: scéal apacrafúil | Ó Héalaí, Pádraig | Article in Book | | 1983 |
| An crois Bríde | Ó Suilleabháin, Seán, 1903-1996 | Article in Book | | 1982 |
| An examination of how some co. Roscommon holy wells feature in the cult of the Holy Well in Ireland | O'Connell, Mary | Article in Journal | | 1998 |
| An fhéile i scéalta cráifeacha an bhéaloidis | Ó Héalaí, Pádraig | Article in Book | | 2000 |
| An Ghaeilge in Eaglais na hÉireann / The Irish Language in the Church of Ireland | Giltrap, Risteárd | Monograph or Collective Volume | Foilseacháin Ábhair Spioradálta | 2019 |
| An innovative people : the Church of Ireland laity, 1780-1830 | Comerford, Patrick | Article in Book | | 2002 |
| An inside view of the identity struggles of a member of a religious order in a changing culture from the late 1960's to the post Ryan report era in 21st century Ireland | McEvoy, Carmel | Thesis | | |
| An introduction to Franciscan questing in twentieth century Ireland | Duddy, Cathal
| Article in Journal | | 2015 |
| An introduction to the parish mission movement 1850-80 and its impact on the diocese of Kilmore | McGoohan, Ultan
| Article in Journal | | 2017 |
| An Irish 'cisiojanus' | O'Sullivan, William, 1921-2000 | Article in Journal | | 1987 |
| An Irish homily on the life of the Virgin Mary | Breatnach, Caoimhín | Article in Journal | | 2000 |
| An Irish manuscript in western Australia : John Howard's prayer book | Brennan, Mary M. | Article in Book | | 2015 |
| An Irish missionary in India : Thomas Gavan Duffy and 'The Catechist of Kil-Arni' | Bateman, Fiona | Article in Book | | 2006 |
| An Irish motif on a group of early Irish high crosses? | Lynch, Kevin | Article in Journal | | 1997 |
| An Irishman at world's end : the voyage of St Brendan on the Hereford map | Scully, Diarmuid | Article in Book | | 2015 |
| An Irishman's diary : aspects of Tadhg Ó Cianáin's Rome | Mac Craith, Mícheál | Article in Book | NA | 2013 |
| An Leabhar Eoin : deabhóid agus piseogacht | Ó Héalaí, Pádraig | Article in Book | | 2009 |
| An Leabhar Eoin: The ‘In principio’ charm in oral and literary tradition | Ó Crualaoich, Gearóid | Article in Book | | 2019 |
| An leagan Muimhneach den Phaidir | Ó Háinle, Cathal | Article in Book | | 2013 |
| An Mhaighdean Mhuire agus an nua-spioradáltacht | Ó Duibhir, P. | Article in Book | | 1982 |
| An Piarsach: misteachas, morálacht agus miotas | Ó Háinle, Cathal | Article in Book | | 2000 |
| An slánaitheoir ag siúl ar an talamh: innéacs scéalta faoi phearsana an Tiomna Nua i mbéaloideas na hÉireann maille le réamhrá agus staidéir | Ó Héalaí, Pádraig | Monograph or Collective Volume | An Sagart | 2012 |
| An spioradáltacht : an naomhshacraimint, oilithreachtaí | Ó Laoghaire, Diarmuid, SJ | Article in Book | | 1982 |
| An tAthair Caomhánach agus an cogadh creidimh i gConamara | Ní Shúilleabháin, Máire | Monograph or Collective Volume | Foilseacháin Náisiúnta Teoranta | 1984 |
| An tExemplum in 'Trí Bior-Ghaoithe an Bháis' | Ó Dúshláine, Tadhg | Article in Book | | 1983 |
| An Ulster parish : being a history of Donaghcloney (Waringstown) | Atkinson, Edward Dupré | Monograph or Collective Volume | Hodges, Figgis | 1898 |
| An Unholy Trinity: Medicine, Politics and Religion in Ireland | Kirwan, Liam | Monograph or Collective Volume | The Liffey Press | 2016 |
| An unusual mission : establishing the Pioneers in Zambia | Searson, Charles | Article in Book | | 2015 |
| Antrim parish church for three hundred years : a sketch of its history and its incumbents | Collis, Maurice H. Fitzgerald | Monograph or Collective Volume | Marcus Ward | 1896-7? |
| Aodh Mac Aingil (1571-1626) : theologian, prose stylist, and poet | Uí Laighléis, Gearóidín | Article in Book | | 2025 |
| Aonghas of Tallaght | Ó Riain, Pádraig | Article in Book | | 2012 |
| Apostolic work | O'Donovan, Kathleen | Article in Journal | | 2000 |
| Approaching Ireland's later historical archaeology : people and society 1824-1926 | Hennessy, Eiden | Thesis | | |
| Archaeology and Celtic myth : an exploration | Waddell, John | Monograph or Collective Volume | Four Courts | 2014 |
| Archaeology of early medieval baptism at St Mullin's, Co. Carlow | Ó Carragáin, Tomás
| Article in Journal | | 2010 |
| Ardstraw (Newtownstewart) : historical survey of a parish, 1600-1900 | Gebbie John H. | Monograph or Collective Volume | Strule Press | 1968 |
| Art and devotion in late medieval Ireland | | Monograph or Collective Volume | Four Courts | 2006 |
| Art and the cult of the Virgin Mary in Ireland, c. 1500-1660 | Tait, Clodagh | Article in Book | | 2006 |
| Art, Belief and Politics in Scotland and Ireland, c. 500–c. 1900 | Moss, Rachel ; Pulliam, Heather | Article in Book | Edinburgh University Press | 2025 |
| Ascendancy insecurities: cross pressures on an eighteenth-century improving landlord | Busteed, Mervyn | Article in Book | | 2008 |
| Aspects de la civilisation copte en Irlande | Manara, Franck | Article in Journal | | 2002 |
| Aspects of image and meaning in Irish medieval wall paintings | Morton, Karena | Article in Book | | 2006 |
| Aspects of the 1859 revivial in the Maze, Broomhedge, and Kilwarlin areas near Lisburn | Watson, Gilbert | Article in Journal | | 2009 |
| Assessing an absence : Ulster Protestant women authors, 1900-60 | Doak, Naomi | Article in Book | | 2008 |
| Athassel Priory and the cult of St Edmund in medieval Ireland | Young, Francis | Monograph or Collective Volume | Four Courts Press | 2020 |
| Attitudes to the rosary and its performance in Donegal in the nineteenth and twentieth centuries | Lysaght, Patricia | Article in Journal | | 1998 |
| Austerity, necessity and luxury | Berry, Christopher J. | Article in Book | | 1999 |
| AVE reversing EVA : miscellanea on Marian devotion in Irish bardic poetry | McManus, Damian | Article in Book | | 2013 |
| Baptists in Britain | Ellis, Christopher | Article in Book | | 2006 |
| Barrigone Holy Well and the Crimean War : an unlikely connection | Nugent, Louise | Article in Journal | | 2016 |
| Bartholomew Cavanagh, Pastor of Knock parish 1879 | Kavanagh, Jimmy | Article in Journal | | 2003 |
| Beatha Mheán-Ghaeilge Cholm Cille | Herbert, Máire | Article in Book | | 1985 |
| Beathaí naomh iasachta i ndeireadh na meánaoise. | Ó Laoghaire, Diarmuid | Article in Book | | 1985 |
| Becca na delba acht delb Dé | Ó Cuív, Brian | Article in Book | | 1997 |
| Begging, charity and religion in pre-Famine Ireland | McCabe, Ciarán | Monograph or Collective Volume | Liverpool University Press | 2018 |
| Being religious in Northern Ireland, 1921–2021 | Holmes, Andrew R. | Article in Book | | 2022 |
| Belfast Cathedral : the ornament | Thompson, Herbert Marshall | Monograph or Collective Volume | Belfast Cathedral Guild | 1927 |
| Belfast Cathedral: the decoration | Thompson, Herbert Marshall | Monograph or Collective Volume | Belfast Cathedral Guild | 1926 |
| Beliefs in County Down folklore | Buckley, Anthony D. | Article in Book | | 1997 |
| Bernard Cavanagh, the man who lived on the word of God | Kavanagh, James M. | Article in Journal | | 2004 |
| Between reformation and enlightenment : Presbyterian clergy, religious liberty and intellectual change | Coffey, John | Article in Book | | 2013 |
| Between Ulster and the Kingdom of God: Uses of the Bible by Evangelicals in the Northern Ireland Troubles | Searle, Joshua T. | Article in Book | | 2018 |
| Beyond cradle and grave : Irish folklore about the spirits of unbaptized infants and the spirits of women who murdered babies | O'Connor, Anne | Article in Book | | 2012 |
| Beyond Teleology: Religious and Political Identities Before the Irish Revolution | Connolly, S.J. | Article in Book | Oxford University Press | 2024 |
| Birth of an airport parish : the early years of St Senan’s parish, Shannon, 1945-88 | Ó Donnabháin, Diarmaid | Monograph or Collective Volume | Columba Press | 2014 |
| Bishop James Gallagher's sermons (1736) | Mac Murchaidh, Ciarán | Article in Book | | 2025 |
| Bishop O'Beirne and his church-building programme: the Church of Ireland and pre-Reformation Christianity | Gallagher, Caroline | Article in Book | | 2017 |
| Bishop Patrick McGettigan of Raphoe, 1820-1861 | Canning, B. J. (Bernard J.) | Article in Journal | | 2011 |
| Bishop Patrick O'Donnell and Rome | Silke, John J. | Article in Journal | | 2013 |
| Bishop Tirry's Visit to Skellig Michael | Ó Cíobháin, Breandán | Article in Book | | 2022 |
| Bishop Walter Lynch (c.1593-1663) and the Black Madonna of Gyor | Ó hAnnracháin, Tadhg | Article in Book | | 2015 |
| Black skin, green masks: Medieval foliate heads, racial trauma, and Queer world-making | Dinshaw, Carolyn | Article in Book | | 2017 |
| Blessed bees | Monaghan, Evie | Article in Book | | 2012 |
| Blessed John Henry Newman and the holy eucharist | Norris, Thomas | Article in Book | | 2012 |
| Blessed Nicholas Charnetskyi | McConvery, Brendan | Article in Book | | 2012 |
| Blessed wells around Lough Graney (?) | Noonan, Joe | Article in Journal | | 1989 |
| Blood rite : the feast of St Martin in Ireland | Mag Fhloinn, Bill | Monograph or Collective Volume | Academia Scientiarum Fennica | 2016 |
| Blood, piety and the Eucharist in late-medieval Ireland | Ryan, Salvador | Article in Book | | 2012 |
| Bonabhentura Ó hEodhasa and the ministry of the word | Mac Craith, Mícheál | Article in Book | | 2013 |
| Bonedd Y Saint: An Edition and Study of the Genealogies of the Welsh Saints | | Monograph or Collective Volume | Dublin Institute for advanced studies | 2023 |
| Books from the British Isles in the collections of eighteenth-century Norwegian clergy | Dahl, Gina | Article in Book | | 2020 |
| Brigit and Patrick in 'Vita Prima Sanctae Brigitae': veneration and jurisdiction | Dawson, Elizabeth | Article in Journal | | 2017 |
| Bringing it all back home : Mary Butler (1641-1723), Benedictine abbess of Ypres | Kelly, James E. | Article in Book | | 2015 |
| Britain, France, and the empire, 1350-1500 | Kekewich, Margaret Lucille, 1939-Rose, Susan, 1938- | Monograph or Collective Volume | Palgrave Macmillan | 2005 |
| Britan and Ireland | Ryrie, Alec | Article in Book | | 2005 |
| Brother of the More Famous Ben : The Theology of Archbishop John Hoadly | Gibson, William T. | Article in Journal | | 2006 |
| Bunús agus forbairt beatha Mheán-Ghaeilge Bhríde | de Buitléir, Órlait | Article in Book | | 1985 |
| Burchard of Mount Sion, O.P.: Descriptio Terrae Sanctae | Burchard of Mount Sion, O.P. | Monograph or Collective Volume | Oxford University Press | 2019 |
| Burgatia (land of the burgesses or freemen of Ross) | O'Callaghan, Fachtna | Article in Journal | | 2007 |
| Buried among the saints | O'Loughlin, Thomas | Article in Book | | 2016 |
| Burying Bad Luck: Material Cultures of Magic in Nineteenth- and Early Twentieth-Century Irish Houses and Farmyards | Tait, Clodagh | Article in Book | | 2023 |
| Bygone days : stories of Limerick | O'Shaughnessy, Denis | Monograph or Collective Volume | | 2018 |
| Cáin Adomnáin, 697 : the Irish 'Geneva convention' | O'Dwyer, Máire | Article in Journal | | 2015 |
| Campanology in Ireland : a study of bells, bell-founding, inscriptions and bell-ringing | Dukes, Fred | Monograph or Collective Volume | Samton | 1994 |
| Canon James Kearney O'Neill 1857-1922 Founder of The Knights of St. Columbanus | Rogers, Frank | Monograph or Collective Volume | Rogers - self-published | 2012 |
| Canterbury's perspective on church reform and Ireland 1070-1115 | Brett, Martin | Article in Book | | 2006 |
| Caoineadh ar an Athair Muiris Ó Cuill | Ó Murthuile, Seosamh | Article in Journal | | 1969 |
| Caoineadh os cionn coirp : The lament for the dead in Ireland | Lysaght, Patricia | Article in Journal | | 1997 |
| Caointe agus seancheolta eile / Keening and other old Irish musics | Ó Madagáin, Breandán | Monograph or Collective Volume | Cló Iar-Chonnacht | 2005 |
| Captain Glover writes a bible | Gillespie, Raymond, 1955-2024 | Article in Book | | 2013 |
| Carleton and Lough Derg | Skeffington, Sean | Article in Book | | 2006 |
| Carleton's Ulster Catholics | Elliott, Marianne | Article in Book | | 2006 |
| Carmen de Hibernia Insula : the earliest poem about Ireland | O'Hara, Alexander | Article in Book | | 2015 |
| Caroline Wyndham-Quin, countess of Dunraven (1790-1870) : an analysis of her discursive and material legacy | Clarke, Odette | Thesis | | 2010 |
| Cathaoir Ghobnatan agus Carraig an Chaisleáin | Ó Ceallaigh, Próinséas | Article in Journal | | 1951 |
| Cathedral music in the Church of Ireland under the Stuarts | Houston, Kerry | Article in Book | Four Courts Press | 2025 |
| Cathedral of St. Anne, Belfast, 1904-1930 | Thompson, Herbert Marshall | Monograph or Collective Volume | Belfast Cathedral Guild | 1930 |
| Catherine McAuley (1778-1841) | Bergin, Moira | Article in Book | | 2012 |
| Catholic Action as an organised campaign in Ireland, 1921-1947 | Curtis, Maurice | Thesis | | 2000 |
| Catholic and Protestant Dublin weavers before the Spanish Inquisition, 1745-54 | O'Connor, Thomas | Article in Book | | 2016 |
| Catholic Belief and Practice | Phillips, Peter | Article in Book | Oxford University Press | 2023 |
| Catholic Devotion in Victorian Scotland | Aspinwall, Bernard | Article in Book | | 2008 |
| Catholic devotional literature in Dublin, 1800-30 | Begadon, Cormac | Article in Book | | 2011 |
| Catholic emancipation : documents | Doherty, Gillian M.,O'Riordan, Tomás | Article in Book | | 2011 |
| Catholic Ireland and the Devotional Revolution | Roddy, Sarah | Article in Book | Oxford University Press | 2024 |
| Catholic religious cultures in the diocese of Dublin, 1614-97 | Gillespie, Raymond, 1955-2024 | Article in Book | | 2000 |
| Catholic revival in Kilmore diocese, 1603-41 | Mac Cuarta, Brian | Article in Book | | 2009 |
| Catholic Revivals in Britain and Ireland | Mangion, Carmen M. | Article in Book | Oxford University Press | 2023 |
| Catholicism and social discipline in pre-famine Ireland | Connolly, Sean J. | Thesis | | |
| Catholicism and the New York Irish 1880-1910 | McLeod, Hugh | Article in Book | | 1987 |
| Catholics in Britain and Ireland, 1558-1829 | Mullett, Michael A. | Monograph or Collective Volume | Macmillan | 1998 |
| Catholics, War and Britain's Armed Forces | Snape, Michael | Article in Book | Oxford University Press | 2023 |
| Cattle crossing | Corlett, Christiaan | Article in Journal | | 2007 |
| Celebrating 200 years of St Colman's Church, Cloyne | Hartnett, MargaretLyons, PatriciaTerry, Kevin | Monograph or Collective Volume | Cloyne Parish | 2015 |
| Celebrating 400 years, 1596-1996 : All Saint's Parish Church, Antrim | Gates, Peter,Kidd, Mervyn,Wallace, John | Monograph or Collective Volume | Antrim Printers | 1996 |
| Celtic Christianity and nature : early Irish and Hebridean traditions | Low, Mary | Monograph or Collective Volume | Edinburgh University Press | 1996 |
| Celtic Mists: The search for a Celtic rite | Tracey, Liam | Article in Book | | 2017 |
| Celtic spirituality | | Monograph or Collective Volume | Paulist | 1999 |
| Celtic women in the early Middle Ages | Davies, Wendy, 1942- | Article in Book | | 1983 |
| Centenary of St. Donard's of Murlough Parish Church of Dundrum - a short history | McCammon, Kenneth A. | Monograph or Collective Volume | Down Recorder [Printer] | 1987 |
| Chalres Houben (1921-93) | O'Leary, Anthony | Article in Book | | 2013 |
| Chalybeate springs and holy wells | O'Keeffe, J. J. | Article in Journal | | 1999 |
| Chapter 5 St Filippo Neri in the Spanish Press : Earthquakes, Veneration and Wondrous Events | Viceconte, Milena | Article in Book | Brill | 2024 |
| Charles Inglis : A bishop from Glencolmcille | Mac Cuinneagáin, Conall | Article in Journal | | 2009 |
| Charms in Medieval Irish tales: Tradition, adaptation, invention | Carey, John | Article in Book | | 2019 |
| Charms, charmers and charming in Ireland : From the medieval to the modern | | Monograph or Collective Volume | University of Wales Press | 2019 |
| Chasing St Aidan’s monastery at Ferns | Dowling, GerLacey, BarryLafaye, Anne-JulieMandal, StephenMcIlreavy, DavidRogers, Michael ‘Bodhi’Shine, Denis | Article in Book | | 2023 |
| Christ Church Londonderry 1830-2005: milestones - ministers - memories | Bartlett, IanHamilton, Roy | Monograph or Collective Volume | Christ Church, Londonderry [Printed by Impact Printing, Ballycastle] | 2005 |
| Christ Church Strabane, 1879-1979 : centenary brochure | Lovell, Ernest W. | Monograph or Collective Volume | Bell, Logan and Carswell [Printer] | 1979 |
| Christ Church, Derriaghy, gravestone inscriptions | | Monograph or Collective Volume | W. N. C. Barr | 1980 |
| Christ Church, Londonderry, 1830-1980: milestones - ministers - memories | Bartlett, Ian,Bryans, Cecil,Hamilton, Roy | Monograph or Collective Volume | Limavady Printing Company [Printer] | 1980 |
| Christ in Celtic Christianity : Britain and Ireland from the fifth to the tenth century | Brown, Shirley AnnHerren, Michael W. | Monograph or Collective Volume | Boydell | 2002 |
| Christ the wounded lover and affective piety in late medieval Ireland and beyond | Ryan, Salvador | Article in Book | | 2016 |
| Christian life in Glenravel around 1875 | Kennedy, W. A. | Article in Journal | | 1989 |
| Christianity and the Ulster cycle in Cath Maige Rath | Wong, Donna | Article in Journal | | 1994 |
| Christianity in Ireland : revisiting the story | | Monograph or Collective Volume | Columba Press | 2002 |
| Christians and pagans : the conversion of Britain from Alban to Bede | Lambert, Malcolm D. | Monograph or Collective Volume | Yale University Press | 2010 |
| Church and state : essays in political philosophy | Clarke, Desmond | Monograph or Collective Volume | Cork University Press | 1984 |
| Church buildings and pastoral care in early medieval Ireland | Ó Carragáin, Tomás | Article in Book | | 2006 |
| Church dedications of the Armagh Diocese | Mayes, Gilbert | Monograph or Collective Volume | Dundalgan Press (W. Tempest) Ltd. | 1951 |
| Church music reform | Delaney, James | Article in Journal | | 1946 |
| Church of Ireland parish and people in Westmeath, 1897-1996 | Whiteside, Lesley | Article in Book | Geography Publications | 2022 |
| Church of Ireland parish churches in the Donegal group | Trimble, Harry, Rev. | Article in Journal | | 2012 |
| Church of St. Polycarp : parish of Finaghy : diocese of Connor | Church of St. Polycarp | Monograph or Collective Volume | [Church of St. Polycarp] | 1932 |
| Church-goers in Limerick during war and revolution | Comerford, Patrick | Article in Book | | 2023 |
| Churches, the State, and Politics, 1800-1922: An Overview | Brown, Stewart J. | Article in Book | Oxford University Press | 2024 |
| Clabby on the Map: the Church of Ireland parish of Clabby and its people | Murrow, Samuel B. | Monograph or Collective Volume | [Clabby parish] | 2006 |
| Clanabogan Parish Church : Diocese of Derry : a short description of its beautiful marble decoration | Benson, T.W. | Monograph or Collective Volume | [The author?] | c. 1932 |
| Classifications of sacred space : a new understanding of Mass rock sites in Ireland | Bishop, Hilary, J. | Article in Journal | | 2016 |
| Clergy of Kilmore, Elphin and Ardagh : biographical succession lists | | Monograph or Collective Volume | Ulster Historical Foundation|Diocesan Council Kilmore, Elphin and Ardagh | 2008 |
| Clergy of Tuam, Killala and Achonry : biographical succession lists | | Monograph or Collective Volume | Ulster Historical Foundation|Diocesan Council Tuam, Killala and Achonry | 2008 |
| Clergy of Waterford, Lismore and Ferns : biographical succession lists | | Monograph or Collective Volume | Ulster Historical Foundation|Diocesan Council Cashel, Ossory and Ferns | 2008 |
| Climbing the heights of love; A Traveller woman's faith journey | Kilcoyne, Colm | Article in Book | | 2000 |
| Close of Mission at Rathnure (From the 'Wexford People', 15 June 1867) | Anonymous | Article in Journal | | 2005 |
| Closer to Brussels than to Rome? The EU as the new external referent for a secularised Irish society and a redefined Catholic identity | Penet, Jean-Christophe | Article in Journal | | 2009 |
| Cnuasacht paidreacha ó dheisceart Chontae Thiobraid Árainn | Mac Peaircín, Liam, 1938-2019 | Article in Journal | | 2018 |
| Co. Roscommon's holy wells | Siggins, Albert | Article in Journal | | 1992 |
| Columba at Clonmacnoise | O'Reilly, Jennifer | Article in Book | | 2015 |
| Columba: the faith of an island soldier | Ritchie, Bruce | Monograph or Collective Volume | Mentor | 2019 |
| Columbanians across the Channel | Fox, Yaniv | Article in Book | | 2015 |
| Columbanus and the Easter controversy: theological, social and political contexts | Corning, Caitlin | Article in Book | | 2016 |
| Commissioning of bishop's messengers, St. Thomas's Church, Belfast | | Monograph or Collective Volume | [St. Thomas's Church] | 1953 |
| Communal solitude : the Carthusian lay brethren in Great Britain and Ireland, 1178-1569 | Breeden, Francesca | Monograph or Collective Volume | BAR Publishing | 2022 |
| Community, commemoration and confraternity: the chapter office and chapter books in Irish Augustinian foundations | Ó Clabaigh, Colmán | Article in Book | | 2019 |
| Computus and its cultural context in the Latin west, AD 300-1200. Proceedings of the 1st international conference on the science of computus in Ireland and Europe, Galway 14-16 July, 2006 | | Monograph or Collective Volume | Brepols | 2010 |
| Computus in Hiberno-Latin literature | Howlett, David | Article in Book | | 2010 |
| Concepts of generosity in early modern England | Heal, Felicity | Article in Book | | 1999 |
| Confessionalism and mobility in early modern Ireland | Ó hAnnracháin, Tadhg | Monograph or Collective Volume | Oxford University Press | 2021 |
| Confraternities and sodalities in Ireland: charity, devotion and sociability | | Monograph or Collective Volume | Columba Press | 2012 |
| Confraternities and the renewal of Catholic Dublin, c. 1750 - c. 1830 | Begadon, Cormac | Article in Book | Columba | 2012 |
| Confraternities in Ireland : a long view | Lennon, Colm | Article in Book | Columba | 2012 |
| Confraternities, their decline and the problem of sources : background, analysis and review | Fuller, Louise | Article in Book | Columba | 2012 |
| Confraternity letters of the Irish Observant Franciscans and their benefactors | Gribbin, J. A.Ó Clabaigh, Colmán N. | Article in Journal | | 2002 |
| Confronting modernity : Pope Leo XIII, Rerum novarum, and the Catholic Church in Ireland and Poland, 1878-1914 | Luminiello, Rose | Thesis | | |
| Conquest and settlement : patterns of Anglo-Norman settlement in north Munster and south Leinster | Empey, C. A. (Adrian) | Article in Book | | 2009 |
| Containment and the politics of loyalist-based conflict transformation | Graham, Brian | Article in Book | | 2008 |
| Continental catechisms and their Irish imitators in Spanish Habsburg lands, c. 1550-c. 1650 | Ryan, Salvador | Article in Book | | 2013 |
| Convent archives as sources for Irish history | Luddy, Maria | Article in Book | | 2005 |
| Convent of Mercy, Longford : answering the call | Gilmurray, Immaculata | Article in Journal | | 2011 |
| Conversion narratives in eighteenth-century Ireland | Brown, Michael | Article in Book | | 2005 |
| Conversion, family and mentality | Fleming, David A. | Article in Book | | 2005 |
| Converts and conversion in Ireland, 1650-1850 | NA | Monograph or Collective Volume | Four Courts | 2005 |
| Conwal Parish, Letterkenny Church, 1636-1986 | Slater, Joan | Monograph or Collective Volume | [Conwal parish] | 1986 |
| Cork and Cornwall : settlement patterns and social organisation during the rstablishment of Christianity, AD 450-800 | Boazman, Gill | Article in Journal | | 2008 |
| Corpus Christi in Bandon | Dullea, Gearóid | Article in Book | | 2012 |
| Corpus Christi in Rome, 1608 | Mac Craith, Mícheál | Article in Book | | 2012 |
| Corpus Christi procession, Rathnew 1914-1924 | O'Reilly, Stan J. | Article in Journal | | 2003 |
| Creideamh an Bhlascaoid - má bhí a leithéid ann | Ó Fiannachta, Pádraig | Article in Book | | 1992 |
| Creideamh na muintire | Ó Héalaí, Pádraig | Article in Book | | 2013 |
| Critical voices in Irish Catholicism: reading the signs of the times | Fuller, Louise | Article in Journal | | 2011 |
| Croagh Patrick (Cruach Phádraig - the Reek) : an ancient mountain pilgrimage | Hughes, Harold | Monograph or Collective Volume | Harry Hughes | 1991 |
| Croagh Patrick : Ireland's holy mountain | | Monograph or Collective Volume | Croagh Patrick Archaeological Committee | 2013 |
| Croagh Patrick and prehistoric mountain pilgrimage in Ireland: modern myth or ancient reality? | Gibbons, Michael | Article in Book | | 2014 |
| Croagh Patrick’s early associations, Patrician and Non-Patrician | Ó Riain, Pádraig | Article in Book | | 2014 |
| Crossing the circle at the holy wells of Ireland | Brenneman, Mary G.Brenneman, Walter L., jr. | Monograph or Collective Volume | University Press of Virginia | 1995 |
| Crucifixion stone from Summerhill, Co. Meath | Prendergast, Ellen | Article in Book | | 1998 |
| Crying over the evangelists: compunction in the Insular world | Baker, N. G. | Article in Book | | 2015 |
| Cultúr agus creideamh sa 17ú hAois | Ó Doibhlín, Breandán | Article in Book | | 2008 |
| Culture and religion, 1815-70 | Hill, Myrtle | Article in Book | | 2011 |
| Culture and society in Ireland since 1750 : essays in honour of Gearóid Ó Tuathaigh | | Monograph or Collective Volume | Lilliput | 2015 |
| Cumhacht an traidisiúin: Oifige Bheag Mhuire | Ó Baoill, Dónall P. | Article in Book | | 2012 |
| Cumhacht an tsagairt sa béaloideas | Ó Héalaí, Pádraig | Article in Book | | 1977 |
| Cúrsaí Creidimh ar an mBlascaod | | Monograph or Collective Volume | Coiscéim | 2013 |
| Dancing like David and overcoming enemies: Scripture and culture in Christ Apostolic Church Dublin | Uberoi, Rebecca | Article in Book | | 2018 |
| Daniel O'Daly of Kilsarkan: 1595-1662 | Mac Curtain, Margaret | Article in Journal | | 2010 |
| Dánta ar leaba bhais | Costigan, Nóra | Article in Book | | 1997 |
| Darwin at church : John Tyndall's Belfast address | Brown, Matthew | Article in Book | | 2005 |
| Das Kloster von St Jakob bis 1515 | Acht, Stephan | Article in Book | | 2005 |
| David Rothe, Bishop of Ossory, 1641-72 | Corish, Patrick J. | Article in Journal | | 1984 |
| De Jérusalem vers l'Irlande : la translation du Golgotha et du saint Sépulcre | Mebarki, Farah | Article in Journal | | 2002 |
| Deabhóid don chroí Ró-Naofa in Éirinn | Ó Meachair, Micheál | Article in Book | | 1997 |
| Dearcadh na nGael ar Dhia sna Meán-aoiseanna | Ó Héalaí, Pádraig | Article in Book | | 1971 |
| Death and remembrance in medieval Dublin | Murphy, Margaret | Article in Book | | 2016 |
| Death and the Irish : a miscellany | | Monograph or Collective Volume | Wordwell | 2016 |
| Death illuminated : representations of mortality in Books of Hours | Yvard, Catherine | Article in Journal | | 2001 |
| Dédicaces gauloises sur céramique | Delanoy, Arnaud | Article in Journal | | 2006 |
| Democracy and drink | Aspinwall, Bernard | Article in Book | | 2008 |
| Derriaghy : a short history of the parish | Barr, W. N. C., Rev. | Monograph or Collective Volume | W. N. C. Barr | 2006 |
| Desire, sex, gender and anxiety - Irish 'virgin' worship : from psychological origins to cultural dynamics | Tipper, Christopher | Article in Journal | | 2005 |
| Devoted people : belief and religion in early modern Ireland | Gillespie, Raymond, 1955-2024 | Monograph or Collective Volume | Manchester University Press | 1997 |
| Devotion and representation in nineteenth-century Ireland | Lawless, Catherine | Article in Book | | 2010 |
| Devotion, Dispute and Destruction: Insular Crosiers in the Later and Post-medieval Periods | Murray, Griffen | Article in Book | Edinburgh University Press | 2025 |
| Devotional and liturgical themes in the poems of Blathmac | Ó Dochartaigh, Caitríona | Article in Book | | 2015 |
| Devotional and Sacramental Cultures | Ryan, Salvador | Article in Book | Oxford University Press | 2023 |
| Devotional cultures of European Christianity, 1790-1960 | | Monograph or Collective Volume | Four Courts | 2012 |
| Devotional images and their uses in the twelfth-century Irish church : the crucifix of Holy Trinity Cathedral, Dublin, and Archbishop John Cumin | Flanagan, Marie Therese | Article in Book | | 2006 |
| Devotional landscapes : God, saints and the natural world in early modern Ireland | Gillespie, Raymond, 1955-2024 | Article in Journal | | 2010 |
| Devotional landscapes : God, saints and the natural world in early modern Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 2010 |
| Devotional literature in Gaelic Ireland in the eighteenth century | Ó Doibhlin, Diarmaid | Article in Book | | 2025 |
| Devotions at holy wells : an aspect of popular religion in the diocese of Waterford and Lismore before the famine | Broderick, Eugene | Article in Journal | | 1998 |
| Dhá thuireamh ar Phaoraigh | Ó Macháin, Pádraig | Article in Journal | | 2023 |
| Diarmuid de Stóice | Ó Laoghaire, Diarmuid | Article in Journal | | 1972 |
| Diary of a country parish : Christ Church - Ardkeen, diocese of Down | Bell, Frank W.A. | Monograph or Collective Volume | [Frank W. A. Bell] | 2000 |
| Die doppelte Konfessionalisierung in Irland : Konflikt und Koexistenz im 16. und in der ersten Hälfte des 17. Jahrhunderts | Lotz-Heumann, Ute | Monograph or Collective Volume | Mohr Siebeck | 2000 |
| Die schottischen Benediktiner zu St Jakob in Regensburg (1515-1862) | Hammermayer, Ludwig | Article in Book | | 2005 |
| Differing devotions: patterns of religious practice in the British Isles, 1500-1700 | Gillespie, Raymond, 1955-2024 | Article in Book | | 1998 |
| Dílseacht don chreideamh ag Éireannaigh i bhFrainc an 18ú haois | Ó hAnnracháin, Eoghan | Article in Journal | | 2007 |
| Discovering Irish nuns in the nineteenth-century United States : the case of Chicago | Hoy, Suellen | Article in Book | | 2005 |
| Discovering the end of time: Irish evangelicals in the age of Daniel O'Connell | Akenson, Donald Harman | Monograph or Collective Volume | McGill-Queen's University Press | 2016 |
| Display, sacramentalism and devotion : the medals of the archconfraternity of the Holy Family, 1922-39 | Godson, Lisa | Article in Book | Columba | 2012 |
| Doctrinal instruction in Irish: the work of Theobald Stapleton | Wall, Thomas | Article in Journal | | 1943 |
| Donatus, Bishop of Fiesole 829-76, and the cult of St Brigit in Italy | Young, Simon | Article in Journal | | 1998 |
| Down and its parish church | Pooler, L.A. | Monograph or Collective Volume | Down Recorder Office (Printer) | 1907 |
| Dr Geoffrey Keating on transubstantiation | Ó Dúshláine, Tadhg | Article in Book | | 2012 |
| Dr. Michael Dallat (obituary) | Anonymous | Article in Journal | | 2001 |
| Dragons in 'The Golden Legend' : the lives of Saint George and Saint Margaret | Morris, Stephen | Article in Journal | | 2002 |
| Drangan's places of worship down through the years | Hall, Michael | Article in Book | | 1993 |
| Dreaming and emotion in early evangelical religion | Mack, Phyllis | Article in Book | | 2016 |
| Dromore : an Ulster diocese | Atkinson, E. D. | Monograph or Collective Volume | W. Tempest, Dundalgan Press | 1925 |
| Drumcliffe : the Church of Ireland parish in its North Sligo setting | Durand, Stella | Monograph or Collective Volume | [Drumcliffe Parish] | 2000 |
| Dublin Quakers (1650-1900) | Harrison, Richard S. | Monograph or Collective Volume | Risteard Mac Annraoi | 2018 |
| Dúchas Naomh Colm Cille in Éirinn agus in Albain | Watson, Seosamh | Article in Journal | | 2011 |
| Duck or rabbit? The value systems of loyalist paramilitaries | Harris, Lyndsey | Article in Book | | 2008 |
| Dunfanaghy's Presbyterian congregation and its times | MacArthur, C. W. P. | Monograph or Collective Volume | NA | 1978 |
| Éagsúlacht agus contrárthacht na gcreideamh teanga sa Bhreachbhaile | Ní Dhúda, Laoise | Article in Book | | 2018 |
| Early Christian settlement in North-West Ulster | Kerr, Thomas R. (Thomas Robert), 1972- | Monograph or Collective Volume | Archaeopress | 2007 |
| Early Christian settlements in Burrishoole, Co. Mayo | Hyland, Breege | Article in Book | | 2021 |
| Early English, Scottish and Irish thumb bibles | Roscoe, Sydney | Article in Journal | | 1973 |
| Early Irish Gospel-books at St. Gallen | Meehan, Bernard | Article in Book | | 2025 |
| Early Irish hand-bells | Bourke, Cormac | Article in Journal | | 1981 |
| Early Irish monasticism : an understanding of its cultural roots | Thom, Catherine | Monograph or Collective Volume | T & T Clark | 2007 |
| Early Irish spirituality | Ó Laoghaire, Diarmuid, SJ | Article in Journal | | 1969 |
| Early Modern English Catholicism : identity, memory and counter-Reformation | NA | Monograph or Collective Volume | Brill | 2017 |
| Early modern Ireland as a multiconfessional state | Gillespie, Raymond, 1955-2024 | Article in Book | | 2011 |
| Early published works in Irish and their distribution : sixteenth to eighteenth centuries | Mac Craith, Mícheál | Article in Book | | 2025 |
| Ecclesia de Drum: recollections of the Parish of Drumbeg Diocese of Down | Neill, Matthew | Monograph or Collective Volume | [The author]. [Printed by Universities Press, Belfast] | 1995 |
| Echtgus Úa Cúanáin's poem on Eucharistic doctrine | Boyle, Elizabeth | Article in Book | | 2012 |
| Edmund Rice and Saint Teresa of Avila | Ó Cearbhaill, Seán | Article in Book | | 1994 |
| Eglish and Drumcullen : a parish in Firceall | | Monograph or Collective Volume | Firceall Heritage Group | 2003 |
| Eithne ban-dia agus ban-naomh | Dagger, Claire | Article in Book | | 1985 |
| Elizabeth Chambers hears God's word | Gillespie, Raymond, 1955-2024 | Article in Book | | 2013 |
| Elizabeth I and her age : authoritative texts commentary and criticism | | Monograph or Collective Volume | W. W. Norton | 2009 |
| Elizabeth Plunkett, mairtíreach ar son an chreidimh | Ó hAnnracháín, Eoghan | Article in Journal | | 2006 |
| England and Ireland since 1800 | O'Farrell, Patrick James | Monograph or Collective Volume | Oxford University Press | 1975 |
| Ennis Friary and the cult of St Michael the Archangel | Ó Dáleigh, Brian | Article in Journal | | 2016 |
| Enshrining the word in the medieval Irish church | Howard, Niall | Article in Book | | 2013 |
| Érlam : the patron-saint of an Irish church | Charles-Edwards, T. M. (Thomas Mowbray) | Article in Book | | 2002 |
| Eucharistic belief and practice in Ireland, 1660-1740 | Monaghan, Evie | Thesis | | 2014 |
| Eucharistic Congress Dublin 1932 | Hasson, Seamus | Article in Journal | | 2012 |
| European and American scholarship and the study of Medieval Irish ‘magic’ (1846–1960) | Borsje, Jacqueline | Article in Book | | 2019 |
| Evangelical identity and the writing of evangelical history in Northern Ireland | Holmes, Andrew R., 1977- | Article in Book | | 2008 |
| Evangelicals and Catholics in nineteenth-century Ireland | | Monograph or Collective Volume | Four Courts | 2005 |
| Evangelicals and Irish identity in independent Ireland : a case study | Mitchel, Patrick | Article in Book | | 2008 |
| Evangelicals in Ireland : an introduction | | Monograph or Collective Volume | Columbia University Press | 2004 |
| Evangelising the faithful : Edmund Rice and the reformation of nineteenth-century Irish Catholicism | Keogh, Dáire | Article in Book | Columba | 2012 |
| Evidence for contacts between the churches of the Irish and English from the Synod of Whitby to the Viking age | Hughes, Kathleen Winifred | Article in Book | | 1971 |
| Evie Hone and the Manresa House stained-glass windows | Shortall, Michael | Article in Book | | 2012 |
| Excellentissimi Sanctorum Hibernie : Irish saints' lives in Austrian legendaries | Ó Riain, Diarmuid | Article in Book | | 2015 |
| Exchanging blood for wine: envisaging Heaven in Irish bardic religious poetry | Ryan, Salvador | Article in Book | | 2006 |
| Exoticising the Druids: Authenticity, Primitivism and the Celtic Revival | Pulliam, Heather | Article in Book | Edinburgh University Press | 2025 |
| Expanding boundaries ; faith and science, 1850-1990 | | Article in Book | | 2002 |
| Exploring the evidence for early medieval pilgrimage at Kilcolman | Nugent, Louise | Article in Journal | | 2013 |
| Fáilte to a pilgrim visit to "The Great Church of Aghadoe" | Looney, Tom, Rev. | Article in Journal | | 2009 |
| Fairs and pilgrimages | Gmelch, Sharon | Article in Book | | 1979 |
| Faith and Fury: The Evangelical Campaign in Dingle and West Kerry, 1825-45 | MacMahon, Bryan | Monograph or Collective Volume | Eastwood Books (Wordwell Group) | 2021 |
| Faith and thought: Stokes as a religious man of science | Mathieson, Stuart | Article in Book | | 2019 |
| Faith in Ireland, 1600-2000 | Elliott, Marianne | Article in Book | | 2014 |
| Faith of our fathers - evergreen memories | Gorman, Liam | Article in Journal | | 1999 |
| Family, Marriage and Faith: changing times in the Traveller community | McDonagh, Winnie | Article in Book | | 2000 |
| Father Finaghty, Valintine Greatrakes and attitudes to the miraculous in seventeenth-century Ireland and England | Parker, Ciarán Thomas | Thesis | | 1997 |
| Father Patrick Peyton CSC and family prayer | Gribble, Richard | Article in Book | | 2013 |
| Father Paul O'Sullivan OP, EDM (1871-1958) | Casey, Thomas | Article in Book | | 2015 |
| Father Thomas Stanislaus Power CM, CF : a Vincentian with the ANZAC in World War I | Hagerty, James | Article in Book | | 2015 |
| Favourers, intercessors and patrons : why the Irish saints mattered so much to the Irish Franciscans | McCafferty, John | Article in Book | | 2015 |
| Feast of our Lady's conception in the medieval Irish church | Ó Briain, Felim | Article in Journal | | 1948 |
| Fenagh: The Church of Ireland story | Leyden, Padraig | Monograph or Collective Volume | Fenagh Church Restoration Committee | 1989 |
| Fifteen hundredth anniversary, St. Saviour's Church, Connor | Carmody, W. P., Rev.,Hogmeester, A. S., Rev. | Monograph or Collective Volume | [St Saviour's Church, Connor] | 1980 |
| Finding the Clonmore shrine | Bourke, Cormac | Article in Book | | 2009 |
| Folk elements in Scotch-Irish Presbyterian communities | Lewis, Mary E. Brown | Article in Journal | | 1968 |
| Footprints and faith : religion and the landscape in early modern Britain and Ireland | Walsham, Alexandra | Article in Journal | | 2010 |
| For God's sake : the hidden lives of Irish nuns | Metcalfe, Camillus | Monograph or Collective Volume | Liffey Press | 2014 |
| Foreword | Hourihane, Colum P., 1955- | Article in Book | | 2006 |
| Forty years on : Diocese of Down and Dromore, Diocese of Connor 1945-1985 | Macourt, William A. | Monograph or Collective Volume | Universal Publishing | 1985 |
| Four Holy Wells in North Dublin: Past and Present | Blackwood, Katie | Article in Book | Dublin City Council | 2024 |
| Fr Angelus Healy O.F.M. Cap. (1875-1953): The Guardian of the Reek | Walsh, Brendan | Article in Journal | | 2021 |
| Fr Benjamin Joseph Braughall : the saintly pilgrim priest who was curate at Raheen for ten years | O'Leary, Edward, Rev., 1844-1924 | Article in Journal | | 2016 |
| Fr Denis Fahy, C.S.Sp., and Maria Duce, 1945-1954 | Delaney, Enda Gerard | Thesis | | 1993 |
| Fr. John Crowley : padre of the desert | O'Sullivan, Donal J. | Article in Journal | | 2001 |
| Francis Makemie (c.1657-1708) : father of American Presbyterianism | Kirkpatrick, Laurence S. | Article in Book | | 2015 |
| Franciscan copies of Lucerna fidelium. Lóchrann na gcreidmheach in Ireland. | Sharpe, Richard | Article in Book | | 2019 |
| Franciscan servants, Tertiaries and Lay Brothers in nineteenth-century Ireland | O'Kane, Stephen | Article in Journal | | 2019 |
| Frank Duff | Kennedy, Finola | Article in Book | | 2012 |
| Frank Duff | O'Brien, Leon | Monograph or Collective Volume | Gill & Macmillan | 1982 |
| Frank Duff | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1982 |
| Frank Duff : Proinsias Ó Duibh : bunaitheoir Léigiún Mhuire | De Vál, Séamas S. | Monograph or Collective Volume | Foilseacháin Ábhair Spioradálta | 2009 |
| Frank O'Reilly: and the 31st International Eucharistic Congress of 1932 | Smith, Audrey | Article in Journal | | 2016 |
| Fraternising with papists : an Anglican clergyman abroad | Finnegan, Rachel | Article in Book | | 2015 |
| From an abundance of words to their absence : the order of baptism in the Stowe Missal (c. 830) | Whelan, Thomas R. | Article in Book | | 2013 |
| From chaos to enemy : encounters with monsters in early Irish texts : an investigation related to the process of Christianization and the concept of evil | Borsje, Jacqueline | Monograph or Collective Volume | Abbatia S. Petri | 1996 |
| From Connell to Droichead Nua : aspects of the history of Newbridge, Co. Kildare | Connolly, Mary | Monograph or Collective Volume | The author | 2001 |
| From Connie Dodger to John Charles and beyond | Dolan, T. P. (Terence Patrick) | Article in Book | | 2013 |
| From holy wells to the 'great ocean of truth': symbols of the sacred in nature | Buttimer, Anne | Article in Book | | 2012 |
| From hymn to historia: The veneration of local saints in the Medieval Irish Church | Buckley, Ann | Article in Book | | 2017 |
| From Ireland coming : Irish art from the early Christian to the late Gothic period and its European context | | Monograph or Collective Volume | Princeton University Press | 2001 |
| From late medieval piety to Tridentine Pietism? The case of seventeenth-century Ireland | Ryan, Salvador | Article in Book | | 2006 |
| From Paganism to Christianity : the role of acculturation in medieval Irish tradition | Hamon, Denis | Thesis | | 2011 |
| From rags to riches : Piers Butler, eighth Earl of Ormond, 1515-39 | Empey, C. A. (Adrian) | Article in Journal | | 1984 |
| From revelation to resource : the natural world in the thought and experience of Quakers in Britain and Ireland, 1647-1830 | Morries, Geoffrey Peter | Thesis | | |
| From Rome to Augustine : Britain before 597 | Cavill, Paul, 1956-Jackson, Michael | Article in Book | | 2000 |
| From segregation to community in Christ | Thiessen, Gesa Elsbeth | Article in Book | | 2012 |
| From the well of St Patrick : Dromard parish, Co, Longford | MacNerney, James P. | Monograph or Collective Volume | St Mel's Diocesan Trust | 2000 |
| From Tír Conaill to Bavaria : the extraordinary career of Muiredach mac Robartaig | Ó Riain-Raedel, Dagmar | Article in Book | | 2015 |
| Fullness of life : defining female spirituality in twentieth century Ireland | Mac Curtain, Margaret | Article in Book | | 1989 |
| Gealán dúluachra: seanmóireacht na Gaeilge c. 1600–c. 1850. | Ó Dúshláine, Tadhg | Article in Book | | 1996 |
| Gender, faith and power : negotiating identity in the mission field | Hill, Myrtle | Article in Book | | 2008 |
| Gender, public disorder and the Salvation Army in Ireland (1880-1882) | Holmes, Janice | Article in Book | | 2005 |
| Geoffrey Keating (c. 1580-1644), the preacher | Cunningham, Bernadette | Article in Book | | 2013 |
| Gile mo chroí do chroí-se : The light of my heart is your heart | Liston, Bríd | Article in Book | | 2012 |
| Give up yer aul Sins : the word in Irish animation | Corkery, Diane | Article in Book | | 2013 |
| Gleanings from Glenavy Parish | Totten, Jean | Monograph or Collective Volume | [Glenavy Parish] | 1980? |
| Glendalough : a Celtic pilgrimage | Losack, MarcusRodgers, Michael | Monograph or Collective Volume | Columba | 1996 |
| Glendalough : liturgy and music | Casey, Sara G. | Article in Book | | 2011 |
| Glendalough : where beauty, history and spirituality walk hand in hand | Pozdechova, Martina | Article in Book | | 2011 |
| Gluaiseacht spioradálta do ghaeilgeoirí | Ó Conchúir, M. F. | Article in Book | | 1996 |
| Gnasanna na Marbh | Ó Duinn, Sean | Article in Journal | | 1994 |
| Gníomhartha na mBráithre : [aistí comórtha ar Ghaelachas na mBráithre Críostaí]. | | Monograph or Collective Volume | Coiscéim | 1996 |
| Go Santiago de Compostela | Ó Fiannachta, Pádraig | Article in Journal | | 2002 |
| Gobnait Naofa Bhaile Mhúirne | Ó Ceallaigh, Próinséas | Article in Journal | | 1951 |
| God and the good people - folk belief in a traditional community | Naughton, Nora | Article in Journal | | 2003 |
| God's preference for the Poor: The Bible and Social Justice in Ireland | Mitchel, Patrick | Article in Book | | 2018 |
| God's river in spate : the story of the religious awakening in Ulster in 1859 | Carson, John T. | Monograph or Collective Volume | Presbyterian Church of Ireland | 1958 |
| Godly reading : print, manuscript and puritanism in England, 1580-1720 | Cambers, Andrew | Monograph or Collective Volume | Cambridge UP | 2011 |
| Goliath and the boy David : Henry Fitzsimon, James Usher and the birth of Irish religious debate | Ford, Alan, 1956- | Article in Book | | 2016 |
| Goodbye to Catholic Ireland | Kenny, Mary | Monograph or Collective Volume | New Island Books | 2000 |
| Goodbye to Catholic Ireland : a social, personal and cultural history from the fall of Parnell to the realm of Mary Robinson | Kenny, Mary | Monograph or Collective Volume | Sinclair-Stevenson | 1997 |
| Great expectations : the myth of Antichrist in Northern Ireland | Higgins, Gareth I. | Thesis | | |
| Gregory the Great, the Vision of Fursey, and the origins of purgatory | Dunn, Marilyn | Article in Journal | | 2000 |
| Grey Abbey Parish : Saint Saviour's Parish Church, Grey Abbey, County Down | Ridgway, G. P. | Monograph or Collective Volume | [Grey Abbey Parish] | 1969 |
| Griffith Williams, Bishop of Ossory, 1641-72 | Bolton, F.R. | Article in Journal | | 1984 |
| Groomsport parish church, 1842-1992 : a shorth history of the parish and its people in commemorationof 150 years of witness to the work of the Lord Jesus Christ in a small Ulster community | Mowat, Raymond B. | Monograph or Collective Volume | [Groomsport parish] | 1992 |
| Growth and decline of churchly religion | Fahey, Tony | Article in Book | | 2012 |
| Guí an phobail- amhráin bheannaithe ó iarthar chontae na Gaillimhe | Uí Ógáin, Ríonach | Article in Book | | 2012 |
| Hand-bells of the Celtic church in Scotland | Purser, John W. | Article in Journal | | 2006 |
| Harvesting the stars: a pagan temple at Lismullin, Co. Meath | O'Connell, Aidan | Monograph or Collective Volume | Ordnance Survey Ireland | 2013 |
| Healing powers : some families with a blood cure for erysipelas and shingles. A historical perspective | Golden, Mary | Article in Journal | | 2022 |
| Heart religion : evangelical piety in England and Ireland, 1690-1850 | | Monograph or Collective Volume | Oxford UP | 2016 |
| Hell-fire and Poitín : Redemptorist missions in the Irish Free State (1922-1936) | McConvery, Brendan | Article in Journal | | 2000 |
| Henry Piers's continental travels, 1595-1598 | Mac Cuarta, Brian | Monograph or Collective Volume | Cambridge UP | 2018 |
| Heroic recycling in Celtic tradition | Nagy, Joseph F. | Article in Journal | | 2007 |
| Historical highlights ; Parish of Aghaderg, Diocese of Dromore, Co. Down | Little, G. N. | Monograph or Collective Volume | Banbridge Chronicle Press [Printers] | 1989 |
| Historical Marian devotional practices among the Daughters of Charity | Neylon, Anne | Article in Book | | 2014 |
| Historical notice of the Cathedral of the Holy and Undivided Trinity at Down: its past and present state, and the efforts for its improvement and restoration | [Down Cathedral] | Monograph or Collective Volume | Marcus Ward and Co. [Printer] | 1872 |
| History and destiny in the making of the Irish Catholic spiritual empire | Whelan, Irene | Article in Book | | 2017 |
| History of Ballymacarrett Parish, Church of Ireland, Diocese of Down | Salmon, Stewart | Monograph or Collective Volume | [St Patrick's Church, Ballymacarrett] | 1993 |
| History of Killoughter Parish, Co. Cavan, Diocese of Kilmore | Gamble, W. | Monograph or Collective Volume | John Crawford [Printer] | 1914 |
| History of Seagoe Parish | Riley, David | Monograph or Collective Volume | [The author] | 1995 |
| History of St. Michael's Church, Castle Caulfield (Parish of Donaghmore Co. Tyrone) | Burges, Ynyr A. | Monograph or Collective Volume | Tyrone Printing Company | 1920 |
| History of the ecclesiastical ruins at Annaghdown | Goaley, Michael, Rev. | Monograph or Collective Volume | M. Goaley | 1982 |
| History of the Irish Hospitalité of Our Lady of Lourdes, 1930-1990 | Kelly, Patrick | Monograph or Collective Volume | Brendan Byrne & Associates | 1992 |
| History of the parish of Derrykeighan for three centuries | Camac, Thomas | Monograph or Collective Volume | Northern Constitution [Printer] | 1930 |
| History of the parish of Knockbreda | Carmody, William Patrick | Monograph or Collective Volume | R. Carswell & Son | 1929 |
| History of the Wexford Catholic Young Men's Society, 1855-2008, Vol. 2. | O'Rourke, Michael A. | Monograph or Collective Volume | Breffni | 2009 |
| History of the Wexford Catholic Young Men's Society, 1855-2008. Vol. 1. | O'Rourke, Michael A. | Monograph or Collective Volume | Breffni | 2008 |
| History of Trinity College Mission 1912-34 | Trinity College Mission | Monograph or Collective Volume | Trinity College Mission | 1934 |
| History, antiquities, and present state of the parishes of Ballysadare and Kilvarnet, in the county of Sligo: with notices of the O'Haras, the Coopers, the Percevals, and other local families | O'Rourke, T. | Monograph or Collective Volume | James Duffy and Sons | c. 1870 |
| Holding up a lamp to the sun: Hiberno-papal relations and the construction of Irish orthodoxy in John Lynch’s Cambrensis Eversus (1662) | Ryan, Salvador | Article in Book | | 2013 |
| Holy Cross Abbey | Mullaney, Michael | Article in Book | | 2012 |
| Holy Cross abbey and the Counter-Reformation in Tipperary | Cunningham, BernadetteGillespie, Raymond, 1955-2024 | Article in Journal | | 1992 |
| Holy island : Inis Cealtra : island of the churches : pilgrimage, folklore, graveyard inscriptions | Madden, Gerard | Monograph or Collective Volume | Holy Island Tours | 2008 |
| Holy places in Ireland | Cantwell, Jim | Monograph or Collective Volume | New English Library | 1975 |
| Holy sites, holy wells and headstones | Rawson, Betty | Article in Journal | | 2006 |
| Holy wells | O'Donoghue, Catherine | Article in Book | | 1999 |
| Holy wells | Daly, Eugene | Article in Journal | | 2011 |
| Holy wells | Ó Coindealbháin, Seán | Article in Journal | | 1946 |
| Holy wells and other sites of pilgrimage within a portion of east Kerry | O'Hare, Patricia | Article in Journal | | 1996 |
| Holy wells of County Kildare in the early modern period | Finan, Gillian | Thesis | | 2005 |
| Holy wells of east Muskerry, Co. Cork | Hartnett, P. J. | Article in Journal | | 1947 |
| Holy wells of Ireland : sacred realms and popular domains | Ray, Celeste ; McCormick, Finbar | Monograph or Collective Volume | Indiana University Press | 2023 |
| Households of God : The Regular canons and
canonesses of St Augustine and of Prémontré in medieval Ireland | | Monograph or Collective Volume | Four Courts Press | 2019 |
| How Christianity came to Britain and Ireland | Brown, Michelle P. | Monograph or Collective Volume | Lion | 2006 |
| How not to start a mission? : Andrew Boylan (1842-1910) and the Philippines | McConvery, Brendan | Article in Book | | 2015 |
| Hymns and hymn-writers, 1850-1930 | | Article in Book | | 2002 |
| Identity and victimhood among Northern Ireland border Protestants | Donnan, Hastings | Article in Book | | 2008 |
| Ignorant, ill-mannered and excitable : clerical attitudes towards the laity in the Ulster revival of 1859 | Holmes, Janice | Article in Journal | | 1991 |
| Illustration of the Holy Trinity in Ireland, 13th to 17th centuries | Roe, Helen M. | Article in Journal | | 1979 |
| Illustrations of the passion of Christ in the 'Seanchas Búrcach' manuscript | Cunningham, Bernadette | Article in Book | | 2006 |
| Imagining angels in early modern Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 2006 |
| Immaculate deception : the shocking true story of Christina Gallagher and her house of prayer | Gallagher, Jim | Monograph or Collective Volume | Merlin Publishing | 2009 |
| Immanuel Church, Parish of Ardoyne : the early years | Griffith, D. W., Canon | Monograph or Collective Volume | [C.R. Print (Printer)] | 1990 |
| In communion with the 'king of Sunday' | Kelly, David | Article in Book | | 2012 |
| In communion with the Irish saints | Jones, Patrick | Article in Book | | 2012 |
| In defence of the Irish Saints who ‘loved malediction’ | Kudenko, Ksenia | Article in Book | | 2019 |
| In search of Saint Diomoc | MacIvor, Dermot | Article in Journal | | 1956 |
| In search of truth : journeys of nineteenth-century Irish Dominican women | Duggan, Maura | Monograph or Collective Volume | Linden Publishing Services | 2010 |
| In search of Ulster-Scots land : the birth and geotheological imagings of a transatlantic people, 1603-1703 | Vann, Barry Aron | Monograph or Collective Volume | University of South Carolina Press | 2008 |
| In the tradition of St Finbarr : the parish of St Finbarr, Cork | Walsh, T. J. (Timothy J.) | Monograph or Collective Volume | Guy | 1951 |
| Inch Abbey and parish | Donnelly, Maureen | Monograph or Collective Volume | Newtonards Chronicle [Printer] | 1979 |
| Inchiquin's changes of religion | Murphy, John A. | Article in Journal | | 1967 |
| Indeed, it is a great sacrament ... | O'Sullivan, Tomás | Article in Book | | 2012 |
| Infanticide, religion and community in the British Isles, 1720–1920 : introduction | Kilday, Anne-MarieWatson, Katherine D. | Article in Journal | | 2008 |
| Inflamed with seraphic ardor : Franciscan learning and spirituality in the fourteenth-century Irish pilgrimage account | Krasnodebska-D'Aughton, Malgorzata | Article in Journal | | 2012 |
| Instruments of devotion : the practices and objects of religious piety from the late middle ages to the 20th century | | Monograph or Collective Volume | Aarhus University Press | 2007 |
| Insular Christianity : alternative models of the church in Britain and Ireland, c. 1570 – c. 1700 | | Monograph or Collective Volume | Manchester University Press | 2013 |
| Interpretationes Patricianae | Bieler, Ludwig | Article in Journal | | 1967 |
| Interractions from the periphery : some Irish religious minorities and India, c.1850-1923 | Peatling, Gary K. | Article in Book | | 2006 |
| Introduction | Gillespie, Raymond, 1955-2024 | Article in Book | | 2013 |
| Introduction | Raughter, Rosemary | Article in Book | | 2005 |
| Introduction | Dunan-Page, Anne | Article in Book | | 2006 |
| Introduction : converts and conversion in Ireland, 1650-1850 | Brown, MichaelMcGrath, Charles IvarPower, Thomas P. | Article in Book | | 2005 |
| Introduction: Relics, Revivals and Replicas in the Gaelic World | Moss, Rachel ; Pulliam, Heather | Article in Book | Edinburgh University Press | 2025 |
| Iompó 'An Eagna Fhírinneach' go Gaeilge | Ó hÉigearta, Liam | Article in Book | | 2013 |
| Ireland : religion and piety | Jefferies, Henry A. | Article in Book | | 2003 |
| Ireland and Northumbria as illustrated by a Vatican manuscript | McNamara, Martin | Article in Journal | | 1979 |
| Ireland and Rome in the eleventh century | Gwynn, Aubrey | Article in Journal | | 1941 |
| Ireland and Rome in the seventh century | Doherty, Charles | Article in Book | | 2007 |
| Ireland and Scotland : historical perspectives on the Gaelic dimension 1560-1760 | Macdonald, Fiona A. | Thesis | | 1994 |
| Ireland and the breviary | Hazard, Benjamin | Article in Book | | 2013 |
| Ireland and the Holy Land | Hoade, Eugene | Article in Journal | | 1952 |
| Ireland and the reception of the Bible: Social and cultural perspectives | | Monograph or Collective Volume | T & T Clark | 2019 |
| Ireland Before and After the Second Vatican Council | Daly, Mary E. | Article in Book | Oxford University Press | 2023 |
| Ireland in the medieval world, AD 400-1000 | Bhreathnach, Edel | Monograph or Collective Volume | Four Courts | 2014 |
| Ireland's contribution to the devotion to Old Testament saints | Hennig, John | Article in Journal | | 1965 |
| Ireland, 1815-70 : emancipation, famine and religion | | Monograph or Collective Volume | Four Courts | 2011 |
| Ireland, religion and reform : Archbishop Richard Whately, 1831-63 | Boylan, Ciara M. | Thesis | | |
| Ireland, the renaissance and the counter-reformation | Martin, F. X. (Francis Xavier), 1922-2000 | Article in Journal | | 1967 |
| Irische Stützpunkte in Regensburg – Weih Sankt Peter und St Jakob im Mittelalter | Flachenecker, Helmut | Article in Book | | 2005 |
| Irish and Scottish Art, c. 900-1900: Survivals and Revivals | | Monograph or Collective Volume | Edinburgh University Press | 2025 |
| Irish Catholic Bible Readers before the Famine | McConvery, Brendan | Article in Book | | 2018 |
| Irish Catholic Culture Before and After Vatican II | Fuller, Louise | Article in Book | Oxford University Press | 2024 |
| Irish Catholic fiction of the early twentieth century : the power of imagery | Wilson, Ann | Article in Journal | | 2014 |
| Irish Catholicism | Jordan, John | Article in Journal | | 1983 |
| Irish Catholics : traditions and transition | Ó Ríordáin, J. | Monograph or Collective Volume | Veritas | 1980 |
| Irish Catholics before the famine : patterns and questions | Corish, Patrick J. | Article in Journal | | 1986 |
| Irish Catholics promoting their mission to convert the pagan world, 1900-1960 | Finnegan, Michael | Thesis | | 2001 |
| Irish Episcopalians in the Scottish Episcopal Diocese of Glasgow and Galloway during the Nineteenth Century | Meredith, Ian | Article in Journal | | 2009 |
| Irish form of preparation for Sunday mass in the eighteenth century | Hawkes, William | Article in Journal | | 1955 |
| Irish images of Jesus 1550-1650 | Tait, Clodagh | Article in Journal | | 2001 |
| Irish Medieval Book-shrines: Repairs, Refurbishments and Recycling | Mullarkey, Paul | Article in Book | Edinburgh University Press | 2025 |
| Irish medieval spirituality | O'Dwyer, Peter | Article in Book | | 1981 |
| Irish observance of the three Lents and the date of the Sr Gall Priscian (Ms 904) | Ó Néill, Pádraig | Article in Journal | | 2000 |
| Irish pilgrimage | Mould, Daphne D. C. Pochin | Monograph or Collective Volume | Gill | 1955 |
| Irish pilgrimage : holy wells and popular Catholic devotion | Carroll, Michael P. | Monograph or Collective Volume | Johns Hopkins University Press | 1999 |
| Irish pilgrims on the Camino de Santiago : 800 years | Bousard, TiffanyNeyts, CiskaVerberckmoes, Johan | Monograph or Collective Volume | Astrolabe Press | 2016 |
| Irish preaching, 700-1700 | | Monograph or Collective Volume | Four Courts | 2001 |
| Irish Presbyterian missionaries to mid-nineteenth-century German Jews | Railton, Nicholas M. | Article in Book | | 2015 |
| Irish Presbyterians and the quest for toleration, c. 1692-1733 | Whan, Robert | Article in Book | | 2021 |
| Irish Presbyterians and the shaping of Western Pennsylvania, 1770-1830 | Gilmore, Peter E. | Monograph or Collective Volume | University of Pittsburgh Press | 2018 |
| Irish Protestant Identities | | Monograph or Collective Volume | Manchester University Press | 2008 |
| Irish Protestants in the Theatre of the World: The Apostolic Hospice for the Converting, Rome, 1677–1745 | Carroll, Clare Lois | Article in Book | | 2019 |
| Irish religion [review article] | Hampton, David | Article in Journal | | 1986 |
| Irish saints in a Regensburg litany | Ó Riain, PádraigÓ Riain-Raedel, Dagmar | Article in Book | | 2015 |
| Irish soldiers in Loreto and Rome : a pilgrimage, and an employment request c.1609 | Mac Cuarta, Brian | Article in Journal | | 2019 |
| Irish spirituality | Ó Laoghaire, Diarmuid, SJ | Article in Book | | 1984 |
| Irish spirituality : some insights from the churches of the Reformation | Simms, George Otto | Article in Book | | 1981 |
| Irish travellers at Knock : contesting sacred space | Brownlee, Attracta M. | Article in Journal | | 2011 |
| Irish women in religious orders, 1530-1700 : suppression, migration and integration | McShane, Bronagh Ann | Monograph or Collective Volume | Boydell Press | 2022 |
| Irish women’s spiritual and religious Life-Writing in the Late Eighteenth and Nineteenth Centuries | Luddy, Maria | Article in Book | | 2018 |
| Irrish Protestant and the creation of the Bible Belt | Vann, Barry | Article in Journal | | 2007 |
| Is mairg a báitear in am an anaithe : Na hoileánaigh i ngleic leis an dtubaist | Ó Héalaí, Pádraig | Article in Book | | 1989 |
| Iveragh's mountain pilgrimages | Ó Carragáin, Tomás | Article in Book | | 2009 |
| James Bonnell, churchman (1653-99) | McAdoo, H. R. | Article in Journal | | 1952 |
| James Ussher : theology, history, and politics in early-modern Ireland and England | Ford, Alan, 1956- | Monograph or Collective Volume | Oxford University Press | 2007 |
| Jeremy Taylor | Williamson, H. R. | Monograph or Collective Volume | | 1952 |
| Jesuit involvement in exorcisms in seventeenth-century Ireland | O’Donnell, Alma | Article in Book | | 2022 |
| Jesuit parish mission memoirs 1863-76, part II | Laheen, Kevin A. | Article in Journal | | 1999 |
| Joan's people : Limerick youth service, 1973-2003 | Forde, Walter | Monograph or Collective Volume | Kara Publications | 2003 |
| John Bale, bishop of Ossory, 1552-3 | Ellis, Steven G., 1950- | Article in Journal | | 1984 |
| John Carswell and Foirm na n-Urrnuidheadh (1567) | Titley, Alan | Article in Book | | 2025 |
| John Franckton, printer, and the Book of Common Prayer in Irish : Leabhar na n-Urnaightheadh gComhchoidchiond (1608) | Hunter, R. J. (Robert J.) | Article in Book | NA | 2025 |
| John Henry Newman (1801-1890) | McQuinn, C. | Article in Journal | | 1991 |
| John Steiner: Margaret Aylward's 'venerable worker for the cause of poor children' | Regan, Ethna | Article in Book | | 2012 |
| Journeys of Faith: Stories of Pilgrimage from Medieval Ireland | Nugent, Louise | Monograph or Collective Volume | Columba | 2020 |
| Juniors teaching elders : Columbanus, Rome and spiritual authority | Bracken, Damian | Article in Book | | 2007 |
| Katalog | | Article in Book | | 2005 |
| Keeping the faith : Ireland's Primitive Methodism | Roddie, Robin P. | Article in Journal | | 2010 |
| Kilconnell Abbey | Bigger, Francis Joseph, 1863-1926 | Article in Journal | | 1903 |
| Kilcoo Parish Church, Bryansford | Countess of Roden, Clodagh | Monograph or Collective Volume | Mourne Observer [Printer] | 1971 |
| Kildare Cathedral restoration | Anonymous | Monograph or Collective Volume | Forster | 1871 |
| Kildare Hall, the countess of Kildare's patronage of the Jesuits, and the liturgical setting of Catholic worship in early seventeenth-century Dublin | Loeber, RolfStouthamer-Loeber, Magda | Article in Book | | 2006 |
| Killeenbrenan Friary: Flag-ship house of the Franciscan Third Order in Ireland? | McDermott, Yvonne | Article in Journal | | 2012 |
| Killinchy parish church | Rudnitzky, Honor | Monograph or Collective Volume | Parish of Killinchy Union | 1980 |
| Kilmakillogue : its patron saint and antiquities | Lyne, Gerard J. | Article in Journal | | 1990 |
| Kingdoms in crisis: Ireland in the 1640s. Essays in honour of Dónal Cregan | | Monograph or Collective Volume | Four Courts | 2001 |
| Kirche und Kloster St Jakob : Archaeologie und Architektur | Acht, Stephan | Article in Book | | 2005 |
| Kitsch, enchantment and power : the bleeding statues of Templemore in 1920 | Wilson, Ann | Article in Book | Bloomsbury Press | 2014 |
| Knock | Good, Eileen | Monograph or Collective Volume | Veritas | 2002 |
| Knock - A sacred place in the west of Ireland where heaven and earth meet | Quinn, Joseph | Article in Book | | 2012 |
| Knock 1879-1979 | Rynne, Catherine | Monograph or Collective Volume | Veritas | 1979 |
| Knock and its shrine : the story of a famed Irish shrine | Carey, F. P. | Monograph or Collective Volume | Irish Messenger Publications | 1939 |
| Knock shrine and the Marian year of 1954 | Donnelly, James S., Jr | Article in Book | | 2015 |
| Knock Shrine: the worst of times - the 1940s | Donnelly, James S., Jr. | Article in Journal | | 2013 |
| Knockmoy Abbey, otherwise called the Monastery of the "Hill of Victory". Notes on its history, and some ancient charters relating to it (hitherto unpublished) | Blake, Martin J. | Article in Journal | | 1900 |
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| Lá 'le Mártan i gCiarraí Thiar | Mag Fhloinn, Billy | Article in Book | | 2013 |
| La Chalum-Chille | Spears, Arthur | Article in Journal | | 1997 |
| La religione del laicato protestante irlandese, 1534-1800 | Gillespie, Raymond, 1955-2024 | Article in Book | | 2001 |
| La révolte irlandaise (1641-1650) | Sturdy, D. J. | Article in Journal | | 1978 |
| La transcription médiévale des mythes préchrétiens de l'Irlande | Walter, Philippe | Article in Book | | 2010 |
| Labour, love and prayer : female piety in Ulster religious literature, 1850-1914 | Brozyna, Andrea Ebel | Monograph or Collective Volume | Institute of Irish Studies and McGill-Queen's University Press | 1999 |
| Lambeg churchyard, Lisburn, Co. Antrim. Inscriptions on old tombstones (1627-1837) and on those of special interest up to the present day, with notes | Cassidy, William | Monograph or Collective Volume | [Lambeg Parish Church] | 1937 |
| Land, politics and religion on the Clancarty estate, east Galway, 1851-1914 | Casey, Brian J. | Thesis | | 2011 |
| Landscape and religious practice : a study of Mass attendance in pre-Famine Ireland | Miller, David William, 1940- | Article in Journal | | 2005 |
| Lapis and Gold: Exploring Chester Beatty’s Ruzbihan Qur’an | Wright, Elaine | Monograph or Collective Volume | CHester Beatty Library in Association with Ad Ilissum | 2018 |
| Last of their line : the disappearing Anglo-Irish in twentieth-century fictions and autobiographies | O'Byrne, Deidre | Article in Book | | 2008 |
| Late Medieval Sculpture in the West Highlands and Islands and the Invention of a ‘Celtic’ Past | Caldwell, David | Article in Book | Edinburgh University Press | 2025 |
| Late twelfth-century church construction : evidence of parish formation? | Ní Ghabhláin, Helen | Article in Book | | 2006 |
| Laura Bell : courtesan and lay preacher : being a consideration of her life & legend as recorded by those who knew her, and those who wished to know her | Drennan, Anthony S. | Monograph or Collective Volume | Anthony S. Drennan | 2008 |
| Law and religion in Ireland, 1700-1970 | | Monograph or Collective Volume | Palgrave Macmillan | 2021 |
| Lay female piety and church patronage in late medieval Ireland | Lyons, Mary Ann | Article in Book | | 2002 |
| Lay spirituality and worship, 1558-1750 : holy books and godly readers | Gillespie, Raymond, 1955-2024 | Article in Book | | 2002 |
| Lay spirituality and worship, 1750-1950 : a reading people | Paterson, John | Article in Book | | 2002 |
| Laying the nineteenth-century foundations : contributions from a Catholic and a Protestant scholar in the 1820s | Hill, Jacqueline R. | Article in Book | | 2017 |
| Le culte des reliques en Irlande | Picard, Jean-Michel | Article in Book | | 1999 |
| Leabhar Cerne | Ó Laoghaire, Diarmuid | Article in Journal | | 1978 |
| Léachtaí Cholm Cille VIII : Ár ndúchas creidimh | | Monograph or Collective Volume | An Sagart | 1977 |
| Léachtaí Cholm Cille XI : An dúlra sa litríocht | | Monograph or Collective Volume | An Sagart | 1980 |
| Léachtaí Cholm Cille XIV : Ár Scéalaíocht | | Monograph or Collective Volume | An Sagart | 1983 |
| Léachtaí Cholm Cille XV : Ár naomhsheanchas | | Monograph or Collective Volume | An Sagart | 1984 |
| Léachtaí Cholm Cille XXX : Breis faoinár ndúchas spioradálta | | Monograph or Collective Volume | An Sagart | 2000 |
| Learning from pilgrimage in medieval Ireland : pilgrimage at Croagh Patrick from medieval to modern times | Nugent, Louise | Article in Book | | 2017 |
| Learning, imagination and belief | Carey, John | Article in Book | | 2018 |
| Leigheas na muintire sa deasghnáth agus sa paidir | Uí Ógáin, Ríonach | Article in Book | | 2018 |
| Letetur Hybernia, Jubilans Antverpia: The Chant and Cult of St Dympna of Gheel | Mannaerts, Pieter | Article in Book | | 2017 |
| Librán as monastic archetype | Ritari, Katja | Article in Book | | 2015 |
| Life at the monastery 1200 years ago | Parkes, Hilda | Article in Book | | 1987 |
| Life in the medieval cloister | Kerr, Julie | Monograph or Collective Volume | Continuum | 2009 |
| Limerick and the Eucharistic Congress 1932 | Murphy, Charlotte | Article in Journal | | 2012 |
| Lisburn Cathedral and its past rectors | Carmody, W. P., Rev. | Monograph or Collective Volume | R. Carswell & Son | 1923 |
| Lisburn's rich church heritage : churches and places of worship in the Lisburn city area | Kelly, John Andrew | Monograph or Collective Volume | Impression Print and Design | 2009 |
| Literature and Religion, 1798-1923 | Vance, Norman | Article in Book | Oxford University Press | 2024 |
| Liturgy and music in the medieval cathedral | Fletcher, Alan J. | Article in Book | | 2009 |
| Liturgy in the Church of Ireland | Miller, Harold | Article in Book | | 2013 |
| Local lives : the social context of religious allegiences in seventeenth-century Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 2006 |
| Locality and distance in cults of saints in Medieval Norway | Petersen, Nils Holger | Article in Book | | 2017 |
| Long night's journey into eternal day | Purcell, Brendan | Article in Book | | 2012 |
| Lord Falkland, 1610-43 : liberal layman in the age of the Stuarts | Addison, J. T. | Article in Journal | | 1950 |
| Los irlandeses y la Inquisición portuguesa (siglos XVI-XVIII) | Mendes Drumond Braga, Isabel M.R. | Article in Journal | | 2001 |
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| Lough Derg and its pilgrimage | Carey, F. P. | Monograph or Collective Volume | Irish Messenger Publications | 1939 |
| Louvain hagiography and Roman art | Mac Craith, Mícheál | Article in Book | | 2015 |
| Love for and study of the Bible, God's word, in early Irish tradition | McNamara, Martin | Article in Book | | 2013 |
| Love’s betrayal : the decline of Catholicism and the rise of new religions in Ireland | Mulholland, Peter | Monograph or Collective Volume | Peter Lang | 2019 |
| Lurgan Parish, Virginia: a parish history | Kingston, Robert | Monograph or Collective Volume | [Lurgan parish, Virginia] | 1988 |
| Maddybenny Bible Class | Cunningham, JenniferDoherty, Anna | Article in Journal | | 2015 |
| Made holy : Irish women religious at home and abroad | McKenna, Yvonne | Monograph or Collective Volume | Irish Academic Press | 2006 |
| Magheragall parish church. Centenary celebration, June 6th and 7th, 1931 | | Monograph or Collective Volume | Herald Office (printer) | 1931 |
| Maighdean mhíorúilteach Eochaille | Ó hUrmholtaigh, Seán | Article in Journal | | 1954 |
| Máire Ní Dhroma, cct. | Ní Dhroma, Máire | Article in Journal | | 1910 |
| Making a city and citizens: The ‘Fruits’ of preaching in Renaissance Florence | Howard, Peter | Article in Book | | 2017 |
| Making the Book of Fenagh; context and text | | Monograph or Collective Volume | Cumann Seanchais Bhreifne | 2016 |
| Making the plantations British, 1603-1638 : a problematic historiography | Macinnes, Allan I. | Article in Book | | 2006 |
| Making Waterford Catholic : Paul Lombard before the Portuguese Inquisition, 1582-86 | O'Connor, Thomas | Article in Book | | 2026 |
| Manuscripts in the Anglo-Saxon Kingdoms
Cultures and Connections | | Monograph or Collective Volume | Four Courts | 2021 |
| Maol Íosa Ó Brolcháin agus a chuid filíochta | Ó Duinn, Seán | Article in Book | | 1982 |
| Maol Mhuire agus a shinsear | Mac Eoin, Gearóid | Article in Book | | 2015 |
| Marist brothers, 1817-2010 | Canning, B. J. (Bernard J.) | Article in Journal | | 2010 |
| Marriage, the Family, and Sexual Ethics | Geiringer, David : Kelly, Laura | Article in Book | Oxford University Press | 2023 |
| Martyrdom, miracles, visions and the First Crusade | McCready, Karl | Thesis | | 2001 |
| Mary : a history of devotion in Ireland | O'Dwyer, Peter | Monograph or Collective Volume | | 1988 |
| Mary in Irish spirituality | Ó Laoghaire, Diarmuid, SJ | Article in Book | | 1981 |
| Mass attendance in Ireland in 1834 | Miller, David William, 1940- | Article in Book | | 2000 |
| Mass in a Connemara Cabin : Religion and the politics of painting | O'Sullivan, Niamh | Article in Journal | | 2005 |
| Mass Rocks and related sites | Downey, LiamO'Sullivan, Muiris | Article in Journal | | 2014 |
| Mass stations in Raphoe | McLaughlin, P. J. | Article in Journal | | 1957 |
| Material change : the impact of reform and modernity on material religion in north-west Europe, 1780-1920 | | Monograph or Collective Volume | Leuven University Press | 2021 |
| Material Culture | Walsham, Alexandra | Article in Book | | 2023 |
| Material Culture | Johanesen, Sarah : Marsland, Claire | Article in Book | Oxford University Press | 2023 |
| Material networks: Belt Relics in Early Ireland and Anglo-Saxon England | Overbey, Karen Eileen | Article in Book | | 2017 |
| Matt Talbot and the Eucharist: The conquest of freedom in the face of addiction | McCarroll, Joseph | Article in Book | | 2012 |
| Mayo's lost islands : the Inishkeas | Dornan, Brian | Monograph or Collective Volume | Four Courts | 2000 |
| Mayor Francis Taylor (1595-6), the martyred mayor | Lennon, Colm | Article in Book | | 2013 |
| McQuaid's 'old granny' | de Haan, James | Article in Journal | | 2015 |
| Meath : towards a history | Conway, Margaret | Monograph or Collective Volume | History Press Ireland | 2010 |
| Medicine, religion and social mobility in eighteenth- and early nineteenth-century Ireland | Brockliss, Laurence W. B. | Article in Book | | 2010 |
| Medieval Columban pilgrimages in Derry and Donegal | Lacy, Brian | Article in Journal | | 2009 |
| Medieval Dublin XVIII | | Monograph or Collective Volume | Four Courts | 2020 |
| Medieval Irish pilgrims to Santiago de Compostela | Cunningham, Bernadette | Monograph or Collective Volume | Four Courts Press | 2018 |
| Medieval pilgrim's tokens and other souvenirs in Ireland : a review of the archaeological and historical evidence | Nugent, Louise | Article in Book | | 2013 |
| Medieval Welsh poems to saints and shrines | | Monograph or Collective Volume | Dublin Institute for Advanced Studies | 2015 |
| Memorial cards in Irish funerary practice | Bolger, MaryAnn | Article in Book | | 2016 |
| Memorial inscriptions from St. James's Graveyard Dublin : St. James's Graveyard Project | St. James's Development Association | Monograph or Collective Volume | St. Patrick's Cathedral Group of Parishes | 1988 |
| Memories : All Saints' Grangegorman : Choir and Vestry | O'Brien, Harold T. | Monograph or Collective Volume | [The author] | 1995 |
| Memory and nostalgia : The feast of Corpus Christi | Henry, Martin | Article in Book | | 2012 |
| Metalworking in Fifteenth- and Sixteenth-century Gaelic Ireland and Scotland | Ó Floinn, Raghnall | Article in Book | Edinburgh University Press | 2025 |
| Michael McCarthy's campaigns against clerical authority | Maume, Patrick | Article in Book | | 2020 |
| Mimesis, memory, and the magic lantern : what did the Knock witnesses see? | Carpenter, Paul | Article in Journal | | 2011 |
| Minority Religions and Immigration in Ireland | Kmec, Vladimir | Article in Book | Oxford University Press | 2024 |
| Miraculous plenty : Irish religious folktales and legends | NA | Monograph or Collective Volume | Comhairle Bhéaloideas Éireann / An Cumann le Béaloideas Éireann [Folklore of Ireland Council / The Folklore of Ireland Society] [Distributed by Four Courts Press] | 2011 |
| Miscellanea 3 : Stations in the parish of Durrow, Ossory, in 1826 and 1840 | O'Doherty, Sean | Article in Journal | | 2008 |
| Missing Artwork: A lost Early Christian cross-decorated monument from Inishark (Inis Airc), Co. Galway | Gibbons, MichaelHiggins, Jim | Article in Book | | 2017 |
| Missionary and military chaplain : Father John Mullan and the Siege of Kut-al-Amara | Hagerty, James | Article in Book | | 2015 |
| Missionary priests and nuns from Donegal | Deeney, Eddie | Article in Journal | | 2010 |
| Missions to Gaels : reformation and counter-reformation in Ulster and the Highlands and islands of Scotland | Macdonald, Fiona A. | Monograph or Collective Volume | John Donald | 2005 |
| Mistress Rutherford's conversion narrative | | Article in Book | | 2004 |
| Mit dem Schiff auf Pilgerfahrt : die Rolle der Hospize in irischen Hafenstädten | Ó Riain-Raedel, Dagmar | Article in Book | | 1999 |
| Moira parish church, 1722-1972 | McCarthy, John | Monograph or Collective Volume | Lithoforme [Printers] | 1973 |
| Monasticism in early Ireland | Follett, Westley | Article in Book | | 2020 |
| Monasticism in early Ireland | Follett, Westley | Article in Book | | 2020 |
| Moneystown dark tales | McGillick, Frank | Article in Journal | | 1995 |
| Moral formations: discipline and religion in the Irish army, 1922-32 | Ayiotis, Daniel | Monograph or Collective Volume | Eastwood Books | 2024 |
| More Tales of Irish Saints | Curtayne, Alice | Monograph or Collective Volume | The Talbot Press Limited | 1957 |
| More than discourse: the sermons of evangelical Protestants in nineteenth-century Ulster | Dickson, James Norman Ian | Thesis | | 2000 |
| Mother of mercy : the Virgin Mary and the last judgment in Welsh and Irish tradition | Gray, MadeleineRyan, Salvador | Article in Book | | 2007 |
| Moving statues and Irish women | Mac Curtain, Margaret | Article in Book | | 2012 |
| Mr Craghead takes communion | Gillespie, Raymond, 1955-2024 | Article in Book | | 2012 |
| Munster Wedge Tombs (The creation of ritual space) | O'Donovan, Charlie | Article in Journal | | 2018 |
| Murrugud Cléreach Colaim Cilli: Book of Fermoy (ó Leabhar Mhainistir Fhearmaí) | | Monograph or Collective Volume | self-published | 2022 |
| Music and the Church | | Monograph or Collective Volume | Irish Academic Press | 1993 |
| Music in the chapel of Trinity College Dublin | Houston, Kerry | Article in Book | | 2013 |
| Music, liturgy, and the veneration of saints of the Medieval Irish Church in a European context | | Monograph or Collective Volume | Brepols | 2017 |
| My Lourdes Memoir: A Lourdes Memoir Covering Over 50 Years of Pilgrimage with Civil Defence and Irish Defence Forces on the Annual PMI Pilgrimage to Lourdes, and Also with the Dublin and Meath Diocesan Pilgrimages | Ó Ciardhbháin, Mártín | Monograph or Collective Volume | Eprint | 2020 |
| Na paidreacha dúchais | Ó Héalaí, Pádraig | Article in Book | | 1979 |
| Na taoisigh Ultacha agus an Veronica | Mac Craith, Mícheál | Article in Book | | 2015 |
| Nano Nagle (1718-1784): Educator | Clear, Caitriona | Article in Journal | | 2009 |
| Naomh Íde and the heart of the Eucharist | Liostún, Mícheál de | Article in Book | | 2012 |
| Naomh Pádraig, an solas is an scéalaíocht | Ó hÓgáin, Dáithí | Article in Book | | 1997 |
| Narrative-making and recording trauma : reflections from Northern Ireland | Radford, Katy | Article in Book | | 2017 |
| Nation and Religion, The Debate about Darwinism in Ireland | Jones, Greta | Article in Book | | 2008 |
| Navan Fort as a public monument | Lynn, Chris | Article in Book | | 2010 |
| Navan, Co. Meath, in 1766 | Gurrin, Brian F. | Article in Journal | | 2004 |
| Negotiating the middle ground: Thomas Moore on religion and Irish nationalism | Roney, John B. | Article in Book | | 2017 |
| New perspectives on the 'devotional revolution': evidence from the archives of the Irish College, Paris | Begadon, Cormac | Article in Journal | | 2018 |
| New Religious Movements | Mulholland, Peter : Salazar, Carles | Article in Book | Oxford University Press | 2024 |
| Nicholas and Dublin | Bairéad, Eoin C. | Article in Book | | 2010 |
| Nicholas Walsh and his friends : a forgotten chapter in the Irish Reformation | Quinn, Cosslett | Article in Journal | | 1984 |
| Nine hundred years of the Caput Christi charm: Scribal strategies and textual transmission | Tuomi, Ilona | Article in Book | | 2019 |
| Nineteen fifty-four: the Marian Year in Drogheda | Mullen, Maura | Article in Journal | | 2013 |
| Nineteenth-Century charm texts: scope and context | Wolf, Nicholas M. | Article in Book | | 2019 |
| No cheap grace : reforming the Irish Church | Murphy, Séamus, SJ | Article in Book | | 2012 |
| No crusader | Walsh, Willie | Monograph or Collective Volume | Columba Press | 2016 |
| No soil for saints : Why was there no native royal martyr in Man and the Isles? | Beuermann, Ian | Article in Book | | 2014 |
| Norah Hoult and Temple Lane's novels of mixed marriages in the early Free State | Jameson, David | Article in Journal | | 2018 |
| Norman splendour : Duiske abbey, Graignamanagh | Carville, Geraldine | Monograph or Collective Volume | | 1979 |
| Nótaí faoin Pháis Mheán-Bhriotáinise | Lambert, Pierre-Yves | Article in Book | | 1997 |
| Note on the origin of rosaries | Redington, Matilda | Article in Journal | | 1913 |
| Notes and records of the ancient religious foundations at Youghal, Co. Cork, and its vicinity | Hayman, Samuel, Rev. | Monograph or Collective Volume | John Lindsay | 1859 |
| Notes on a "book of hours of the Blessed Virgin Mary" | Swinton, The Hon. Mrs. | Article in Journal | | 1899 |
| Notes on a recumbent monumental effigy in the chuchyard of Timolin, Co. Kildare | Hartshorne, Albert | Article in Journal | | 1895 |
| Notes on Ardamine and Killena Parishes | Vandeleur, W. E. | Monograph or Collective Volume | W. Tempest | 1929 |
| Notes on the family of O'Kelly | Kelly, Richard J. | Article in Journal | | 1905 |
| Notes on the parish of Geashill and Killeigh | Palmer, A. Kingsmill | Monograph or Collective Volume | Leinster Leader (printer) | 1964 |
| Nuns and their networks in early modern Galway | Cunningham, Bernadette | Article in Book | | 2016 |
| Ó Riada's Ár nAthair (Our Father) | O'Keeffe, John | Article in Book | | 2012 |
| Oaths and oath taking : the civic experience in Dublin, 1660-1774 | Hill, Jacqueline R. | Article in Book | | 2016 |
| Obituary. Rev. William Durkan,P.P. | | Article in Journal | | 2006 |
| Observations on the Book of Durrow memorandum | Bhreathnach, Edel | Article in Book | | 2015 |
| Observations on the context and landscape of the West Ossory crosses | Bhreathnach, Edel | Article in Book | | 2015 |
| Observing the Sabbath Day | Carroll, Nuala | Article in Journal | | 2001 |
| Occasions of faith : an anthropology of Irish Catholics | Taylor, Lawrence J. | Monograph or Collective Volume | Lilliput Press | 1997 |
| Of Limerick saints and seekers | | Monograph or Collective Volume | Veritas | 2022 |
| Of stories and sermons : nationality and spirituality in Presbyterian Ulster in the later seventeenth century | Armstrong, Robert (Robert Matthew) | Article in Book | | 2006 |
| Oideas Ardeaspaig | Ó Drisceoil, Proinsias | Article in Journal | | 2014 |
| Oifig Bheag Mhuire | Ó Baoill, Dónall P. | Article in Book | | 2012 |
| Oilithreachtaí ar muir agus ar tír | Mac Síthigh, Domhnall | Article in Book | | 2017 |
| Oilthireacht ón Daingean go Santiago de Compostella | Ó Fiannachta, Pádraig | Article in Journal | | 2007 |
| Old church of Ballinacourty, Barony of Dunkellin | Redington, M. | Article in Journal | | 1915 |
| Old Ireland and her spirituality | Ó Laoghaire, Diarmuid, SJ | Article in Book | | 1965 |
| Old St. Mary's : memories and images | Art, Craft and Design Class, Central Technical Institute, Clonmel | Monograph or Collective Volume | Central Technical Institute, Clonmel | 1996 |
| Olivia Taaffe, 7 Eblana Terrace, Kingstown | Clarke, Brian | Article in Journal | | 1996 |
| Omnes sancti chori Hiberniae Sanctorum orate pro nobis: Manuscript evidence for the cult of Irish saints in medieval Europe | Picard, Jean-Michel | Article in Book | | 2017 |
| On Insular Bells and Tomb-shaped Shrines | Bourke, Cormac | Article in Book | Edinburgh University Press | 2025 |
| On mission to Mexico : Michael Wadding, SJ, of Waterford (1587-1644) | Hazard, Benjamin | Article in Book | | 2015 |
| On the genealogical preamble to 'Vita Sancti Declani' | Ó Cathasaigh, Tomás | Article in Book | | 2015 |
| On the other side of the ocean : John Stritch, SJ (1616-81) and Irish Catholic missionaries in the West Indies | Binasco, Matteo | Article in Book | | 2015 |
| Once more the Celtic horse-goddess | Warmind, Morten | Article in Journal | | 2016 |
| One bread, one body, one borough: Corpus Christi, Drogheda, 1412 | Ó Clabaigh, Colmán N. | Article in Book | | 2012 |
| One hundred years, 1871-1971 : centenary of St. Columba's parish church, Omagh | Taylor, Robert Kenneth | Monograph or Collective Volume | Graham & Sons [Printer] | 1971 |
| Opposing the "Modern World" : the cult of the Virgin Mary in Ireland, 1965-85 | Donnelly, James S., Jr | Article in Journal | | 2005 |
| Opposition to pilgrimage in tenth-century Ireland | Boyle, Elizabeth | Article in Book | | 2015 |
| Ordinary lives : the private lives of three generations of Ireland's professional classes | Farmar, Tony | Monograph or Collective Volume | Gill & Macmillan|A. & A. Farmar | 1995 |
| Ordnance Survey memoir for the parish of Antrim : a description complied as part of the field survey for the first edition of the six inch Ordnance Survey maps / and edited and illustrated by James Boyle of the Ordnance Survey 1838; with an introduction to the Ordnance Survey parish memoirs 1830-40 by Brian Trainor | Boyle, James | Monograph or Collective Volume | Northern Ireland Public Record Office | 1969 |
| Ordnance Survey memoirs for the parishes of Desertmartin and Kilcronaghan 1836-1837 | Ballinascreen Historical Society | Monograph or Collective Volume | Ballinascreen Historical Society | 1981 |
| Orthaí and orthodoxy : healing charms in Irish popular religion | Wolf, Nicholas M. | Article in Book | | 2010 |
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| Our great inheritance : volume two - Dromore Cathedral Parish | Doloughan, Andrew | Monograph or Collective Volume | Banbridge Chronicle Press [Printer] | 1995 |
| Our holy wells | Guiry, Ned | Article in Journal | | 1990 |
| Our Lady Help of Christians parish church, Navan Road : celebrating 50 years 1952-2002 | Behan, Anthony P. (Tony) | Monograph or Collective Volume | Golden Jubilee Committee Church of Our Lady Help of Christians | 2002 |
| Our Lady of Coogee : Eileen O'Connor and the founding of Sydney's Brown Nurses | O'Connell, Mary | Monograph or Collective Volume | Crossing Press | 2009 |
| Our Lady of Coogee : Marian visions in Irish Australia | O'Connell, Mary | Article in Journal | | 2009 |
| Our Lady of Graces of Youghal : 3 - history of the image | Flanagan, U. G. | Article in Journal | | 1951 |
| Our Lady of Graces of Youghal, 1, 2 | Flanagan, U. G. | Article in Journal | | 1950 |
| Our Lady of Marpingen: Marian apparitions in Imperial Germany | Blackbourn, David | Article in Book | | 1997 |
| Our Lady of Victories, Noeux-les-Mines | Downes, Seán | Article in Journal | | 2016 |
| Out of due time : Wilfred Ward and the Dublin Review | Scotti, Paschal, 1961- | Monograph or Collective Volume | Catholic University of America Press | 2006 |
| Pagan beliefs and Christian redress in Acallam na Senórach | Dooley, Ann | Article in Book | | 2014 |
| Paganism | Butler, Jenny | Article in Book | Oxford University Press | 2024 |
| Pagans and holy men : literary manifestations of twelfth-century reform | Ní Mhaonaigh, Máire | Article in Book | | 2006 |
| Paidereacha traidisiúnta ár sinsear - taisce luachmhar | Gallagher, Margaret | Article in Journal | | 2017 |
| Paisleyism : a theological inquiry | Southern, Neil | Article in Book | | 2012 |
| Parish missions and preaching the word of God | McConvery, Brendan | Article in Book | | 2013 |
| Parish of Camus - Juxta - Bann : 1400 years of Christian witness | Gallagher, Adrian I. | Monograph or Collective Volume | A. & Co. | 2000 |
| Parish of Donaghcloney : 'something to celebrate', 1681-1981 | Cooper, S. J. W. | Monograph or Collective Volume | L. M. Press [Printer] | 1981 |
| Parish of Fivemiletown : a short history of St. John's with Kiltermon, 1870-1970 | Bloomfield, Emily | Monograph or Collective Volume | | 1970 |
| Parish of St. John Baptist Clontarf : centenary record 1866-1966 | Smyth, Mary | Monograph or Collective Volume | Fodhla Printing Co. | 1966 |
| Parish of St. John the Evangelist, Orangefield : 21 years of church extension in Castlereagh | Crooks, S. B. | Monograph or Collective Volume | [Parish of Saint John the Evangelist, Orangefield] | 1958 |
| Parish of the Assumption, Booterstown : celebrating 200 years of worship | McGahon, Donal | Monograph or Collective Volume | Booterstown Parish | 2013 |
| Parish of Tickmacrevan, County Antrim: an historical survey | Boyd, Hugh Alexander | Monograph or Collective Volume | C. J. Rountree | 1954 |
| Parishes and pastoral care in the early Tudor era | Jefferies, Henry A. | Article in Book | | 2006 |
| Parishes, pews and parsons : lay people and the Church of Ireland, 1647-1780 | Barnard, T. C. (Toby Christopher) | Article in Book | | 2002 |
| Párliament na mBan | Ó Dúshláine, Tadhg | Article in Book | | 1982 |
| Parnell and religion | Travers, Pauric | Article in Book | | 2013 |
| Pastoral Care and Religious Belief | Cubitt, Catherine | Article in Book | | 2009 |
| Pastoral provision in the first millennium : a two-tier service? | Etchingham, Colmán | Article in Book | | 2006 |
| Patrick McAlister : Bishop of Down and Conor, 1886-95 | Macaulay, Ambrose | Monograph or Collective Volume | Four Courts | 2006 |
| Patritiusverehunrung im Burgenland und in den angrenzenden Gobieten von Niederösterreich und Steiermark | Schmidt, Leopold | Article in Journal | | 1962 |
| Paying the rounds at Ireland's holy wells | Ray, Celeste | Article in Journal | | 2015 |
| Pearse's sacrifice : Christ and Cuchulain crucified and risen in the Easter Rising, 1916 | Gilley, Sheridan | Article in Book | | 1987 |
| Pebbles and peregrinatio : the taskscape of medieval devotion on Inishark Island, Ireland | Lash, Ryan | Article in Journal | | 2017 |
| Peggie O'Neill McCarthy remembers the day of the Stations in bygone times | McCarthy, Peggie O'Neill | Article in Journal | | 2003 |
| Penal crosses found in Co. Carlow: the significance of 18th and 19th century devotional crucifixes in early modern Ireland | Nugent, Louise | Article in Journal | | 2013 |
| Penance and prayer in water : an Irish practice in Northumbrian hagiography | Ireland, Colin | Article in Journal | | 1997 |
| Penance, atonement and the Eucharistic community | Connolly, Hugh | Article in Book | | 2012 |
| Perceptions of Conversion in Seventh-Century Ireland: Representations of Religious Transformation in the Lives of Brigit and Patrick | Dawson, Elizabeth | Thesis | | 2012 |
| Perceptions of Irish religious history among community activists in Northern Ireland, 2010-2013 | Wolffe, John | Article in Book | | 2017 |
| Peregrini in the ocean : spirituality and reality | Wooding, Jonathan M. | Article in Book | | 2015 |
| Perennial Problems of Scottish Catholics : Morale, Personnel and Money | Aspinwall, Bernard | Article in Book | | 2002 |
| Permanent expressions of piety : the secular and the sacred in late medieval stone sculpture | Moss, Rachel | Article in Book | | 2006 |
| Personal conversion, revival and the Holy Spirit : Presbyterian evangelicalism in early nineteenth-century Ulster | Holmes, Andrew R. | Article in Book | | 2016 |
| Philip Bocht Ó hUiginn | Ó hUiginn, Philip | Monograph or Collective Volume | Talbot Press | 1931 |
| Phoenix Park, Blessed John Paul and the word of the cross | Leahy, Brendan | Article in Book | | 2013 |
| Pictures of piety and impropriety : Irish religious periodicals of the 1830s | Kavanagh, Robin J. | Article in Book | | 2010 |
| Piety and nationalism : lay voluntary associations and the creation of an Irish-Catholic community in Toronto, 1850-1895 | Clarke, Brian P. | Monograph or Collective Volume | McGill-Queen's University Press | 1993 |
| Piety without asceticism; or, The Protestant Kempis | Jebb, John, 1775-1833 | Monograph or Collective Volume | | 1831 |
| Pilgrimage to Rome | Mac Craith, Mícheál | Article in Book | | 2012 |
| Pilgrimages | Barber, Richard | Monograph or Collective Volume | | 1991 |
| Pilgrimages to St. James of Compostella from the British Isles during the middle ages | Tate, Robert Brian | Monograph or Collective Volume | Confraternity of Saint James | 2003 |
| Pioneers and partners : the story of the parish of All Saints' Grangegorman, Dublin, in the days of William Maturin (vicar 1843-1887) and Henry Hogan (curate-assistant 1861-1887: vicar 1887-1923) : a continuing tradition | Jenkins, Raymond G. FSimms, George Otto | Monograph or Collective Volume | Raymond G.F. Jenkins and George O. Simms | 1985 |
| Pious occupations : female activism and the Catholic revival in eighteenth-century Ireland | Raughter, Rosemary | Article in Book | | 2005 |
| Piseóga - are they real | McCarthy, Brendan | Article in Journal | | 2018 |
| Plenitude of power : the doctrines and exercises of authority in the middle ages : essays in memory of Robert Louis Benson | | Monograph or Collective Volume | Ashgate | 2006 |
| Poetry of the spirit, 1900-95 | | Article in Book | | 2002 |
| Political activism and the politics of spirituality : the layered identities of Sister Nivedita/Margaret Noble (1867-1911) | Singh, Maina Chawla | Article in Book | | 2006 |
| Political Catholicism in post-war Ireland : the Revd Denis Fahey and Maria Duce 1945-54 | Delaney, Enda | Article in Journal | | 2001 |
| Politics and administration, 1815-70 | Kinealy, Christine | Article in Book | | 2011 |
| Politics and the art of devotion in late-fifteenth-century Waterford | McEneaney, Eamonn | Article in Book | | 2006 |
| Pope Paul V Plenary Indullgence, c.1608 | Ó Cíobháin, Breandán | Article in Book | | 2022 |
| Popular and unpopular religion : a view from early modern Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 1998 |
| Popular Catholicism in Irish New York, c.1900 | McLeod, Hugh | Article in Book | | 1989 |
| Popular Catholicism in twentieth-century Ireland : locality, identity and culture | de Cléir, Síle | Monograph or Collective Volume | | 2017 |
| Popular morality in Irish religious tales | Ó Héalaí, Pádraig | Article in Book | | 1981 |
| Popular preaching and the Jesuit mission in seventeenth-century Ireland | Cunningham, Bernadette | Article in Book | | 2022 |
| Popular religion in Gaelic Ireland, 1445-1645 | Ryan, Salvador | Thesis | | 2002 |
| Possible Irish Influences in the Office for St Kentigern, Patron Saint of Glasgow | Knott, Betty I. | Article in Book | | 2017 |
| Poverty and plenty, the Victorian contrast | Briggs, Asa | Article in Book | | 1999 |
| Power, patronage and the production of Catholic material culture in nineteenth-century Ireland | McGee, Caroline M. | Article in Book | | 2020 |
| Prayer, politics and poetry : Cambridge, Corpus Christi College MS 405 and the Templars and Hospitallers at Kilbarry, Co. Waterford | Ó Clabaigh, Colmán N. | Article in Book | | 2015 |
| Praying for a happy death | McConvery, Brendan | Article in Book | | 2016 |
| Praying for Paisley – Fr Gerry Reynolds and the role of prayer in faith-based peacebuilding : a preliminary theoretical framework | Ganiel, Gladys | Article in Journal | | 2021 |
| Pre-reformation pilgrimages to St. Patrick's Purgatory | de Pontfarcy, Yolande | Article in Journal | | 1993 |
| Preached at Saint Patrick's : sermons from different ages | | Monograph or Collective Volume | Four Courts | 2004 |
| Preaching history, 1749: the Belfast sermons of Gilbert Kennedy and James Saurin | Gillespie, Raymond, 1955-2024 | Article in Book | NA | 2017 |
| Preaching on death | McConvery, Brendan | Article in Book | | 2016 |
| Preaching the Reformation in early modern Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 2011 |
| Prehistoric ritual at Ballynahatty, County Down | Hartwell, Barrie | Article in Book | | 2010 |
| Preliminary remarks on the content of a recently discovered Cork manuscript | Herbert, Máire | Article in Journal | | 2008 |
| Presbyterian religion, historiography, and Ulster Scots identity, c. 1800 to 1914 | Holmes, Andrew R., 1977- | Article in Journal | | 2009 |
| Pride before a fall? Orangeism in Liverpool since 1945 | Day, Peter | Article in Book | | 2008 |
| Priests and people in pre-famine Ireland | Connolly, Sean J. | Monograph or Collective Volume | | 1981 |
| Priests who worked in upper Larah | Cunningham, T. P. | Article in Journal | | 1978 |
| Proper Offices for saints and the Historia : Their history and historiography, and the case of the Historia for St Livinius | Haggh-Huglo, Barbara | Article in Book | | 2017 |
| Prophecy and kingship in Adomnan's 'Life of Saint Columba' | Enright, Michael | Monograph or Collective Volume | Four Courts | 2013 |
| Protestant - Catholic - Jew : an essay in American religious sociology | Herberg, Will | Monograph or Collective Volume | Doubleday | 1955 |
| Protestant millennialism, evangelicalism and Irish society, 1790-2005 | Gribben, CrawfordHolmes, Andrew R., 1977- | Monograph or Collective Volume | Palgrave Macmillan | 2006 |
| Protestantism in Mayo in the twentieth century | Moffitt, Miriam | Article in Book | NA | 2014 |
| Protestants and politics in the Republic of Ireland: is integration complete? | Fahey, TonyHayes, Bernadette C. | Article in Book | | 2008 |
| Public rituals and community power : St Patrick's Day parades in Lowell, Massachusetts, 1814-1874 | Marston, S. A. | Article in Journal | | 1989 |
| Pulp facts and core fictions : translating a cathedral from Aghaboe to Kilkenny | Bradley, John, 1954-2014 | Article in Book | | 2015 |
| Puritan subjectivities : the conversion debate in Cromwellian Dublin | Gribben, Crawford | Article in Book | | 2005 |
| Puritanism in Ireland in the seventeenth century | Kilroy, Philomena | Thesis | | 1973 |
| Quakers and Ballitore | Bewley-Bateman, Rachel | Article in Book | | 2012 |
| Rathlin, island and parish, diocese of Connor | Law, H. I., Rev. | Monograph or Collective Volume | Mid-Ulster Printing Co. [Printer] | 1930 |
| Rathmines Parish. Holy Trinity Church and its history 1828 - 1928 : centenary booklet | | Monograph or Collective Volume | [Rathmines Parish] | 1928 |
| Rathnew Corpus Christi Procession diary 1935-44 | O'Reilly, Stan J. | Article in Journal | | 2005 |
| Rathnew Corpus Christi procession diary 1945-54|Rathnew Corpus Christi procession diary 1956-64 | O'Reilly, Stan J. | Article in Journal | | 2006 |
| Re-discovering St. Willibrord, Patron Saint of Luxembourg, first apostle of the Netherlands and his County Carlow connection : Carlow's impact on Medieval Europe | Kauthen, PierrreMulligan, DermotÓ Cróinín, Dáibhí | Monograph or Collective Volume | Carlow County Council | 2018 |
| Reading Aislinge Óenguso as a Christian-Platonist parable | Gray, Brenda | Article in Journal | | 2005 |
| Reading Architecture : St. Andrew's Church, Dublin, 1670-1990 | Usher, Robin | Article in Journal | | 2008 |
| Reading the Bible in early eighteenth-century Dublin : The Huguenot pastor Henri de Rocheblave (1665-1709) | Whelan, Ruth | Article in Journal | | 2006 |
| Reading the Bible in seventeenth-century Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 1999 |
| Reading the hand : palmistry, graphology and alternative literacies | Rains, Stephanie | Article in Book | | 2019 |
| Real and Imagined communities in the lives of women in seventeenth-century Ireland : identity and gender | Laurence, Anne | Article in Book | | 2008 |
| Rebellious Devotion
Catholicism and the Limits of Modernism | Cronin, Michael G. | Article in Book | | 2019 |
| Recent work on 'Celtic religion' | Egeler, Matthias | Article in Journal | | 2017 |
| Recollections of the Famine | O'Brien, Pat | Article in Journal | | 2005 |
| Reconstructing First Vespers for the Feast of Saint Brendan, Abbot of Clonfert, from the Common Office of a Confessor Abbot, according to the Sarum Rite? | O'Driscoll, Ciaran | Article in Book | | 2017 |
| Reconstructing Irish Catholic origins after the Reformation | Ryan, Salvador | Article in Book | | 2012 |
| Reflections on the religious life of Carlow town 1900-1990 | Brophy, P. J. | Article in Journal | | 1996 |
| Reform, instruction, and practice: the impact of the Catholic Revival on the laity in the Dublin diocese, 1793-1853 | O'Driscoll, Katherine | Thesis | | 2016 |
| Reform, Revolution and Reaction: Archbishop John Thomas Troy and the Catholic Church in Ireland 1787-1817 | McNally, Vincent J. | Monograph or Collective Volume | University Press of America | 1995 |
| Reformation in Britain and Ireland | Heal, Felicity | Monograph or Collective Volume | Oxford University Press | 2003 |
| Reforming Galway : civic society, religious change and St Nicholas's collegiate church, 1550-1750 | GIllespie, Raymond | Monograph or Collective Volume | | 2024 |
| Reinventing the city : the changing fortunes of places of worship in inner-city Dublin | Horner, Arnold | Article in Book | | 2004 |
| Relics and recluses revisited : some thoughts on Cormac's Chapel, Cashel | Ó Carragáin, Tomás | Article in Book | | 2015 |
| Relics and riches : familiarizing the unknown in a fourteenth-century pilgrimage account from Ireland | Krasnodebska-D'Aughton, Malgorzata | Article in Book | | 2015 |
| Relics and the past : the material culture of Catholic martyrdom in Ireland | Tait, Clodagh | Article in Book | | 2009 |
| Relics, reliquaries and hagiography in south Ulster, 1450-1550 | Gillespie, Raymond, 1955-2024 | Article in Book | | 2006 |
| Religion and Greater Ireland : Christianity and Irish global networks, 1750-1950 | | Monograph or Collective Volume | McGill-Queen's University | 2015 |
| Religion and politics in a provincial town : Belfast, 1660-1720 | Gillespie, Raymond, 1955-2024 | Article in Book | | 2016 |
| Religion and Popular Culture in Nineteenth-Century Ireland | McMahon, Timothy G. | Article in Journal | | 2007 |
| Religion and social class: church membership in Belfast, c.1870-1930 | Huddleston, David | Thesis | | 1998 |
| Religion and society, 1600-1914 | Connolly, Sean J. | Article in Book | | 2013 |
| Religion and the Irish Boys' Brigade, 1888-1914 | Power, Brendan | Article in Book | | 2018 |
| Religion as identity: the Church of Ireland's 1932 Patrician celebrations | d'Alton, Ian | Article in Book | | 2017 |
| Religion in Gaelic society | MacInnes, John | Article in Journal | | 1980 |
| Religion, nationalism and political economy in the early twentieth century | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2009 |
| Religion, science, theology and ethics, 1500-2000 | Mac Curtain, Margaret | Article in Book | | 2019 |
| Religious change, 1550-1800 | O'Connor, Thomas | Article in Book | | 2006 |
| Religious Conflict in Twentieth-Century India | Bayly, C. A. | Article in Book | | 1997 |
| Religious observation in everyday life | MacMahon, Bryan | Article in Book | | 2012 |
| Religious revival and popular evangelicalism in Britain and Ireland, 1859-1905 | Holmes, Janice | Thesis | | 1995 |
| Religious Revivals in Britain and Ireland, 1859 - 1905 | Holmes, Janice | Monograph or Collective Volume | Irish Academic Press | 2000 |
| Religious women and their history : breaking the silence | | Monograph or Collective Volume | Irish Academic Press | 2005 |
| Remaking the Gaelic Christian Landscape: Devotion, Iconoclasm and Tourism in Post-Reformation Ireland and Scotland | Moss, Rachel | Article in Book | Edinburgh University Press | 2025 |
| Remembering the saints of Munster: an Irish Prayer Book copied by Dáibhí de Barra | Kühns, JuliaMews, Constant J.Watson, Chris | Article in Journal | | 2014 |
| Representing Irish religious histories : historiography, ideology and practice | | Monograph or Collective Volume | Palgrave Macmillan (Springer) | 2017 |
| Reproduction of the Hunterston Brooch in Scotland and Ireland, c. 1850–1900 | Kelly, tara | Article in Book | Edinburgh University Press | 2025 |
| Rev Dr John Yarner's notebook : religion in Restoration Dublin | | Article in Journal | | 1998 |
| Reverend Devereux Spratt's unwilling journey (1642) | Gillespie, Raymond, 1955-2024 | Article in Book | | 2015 |
| Review article. The cult of the sacred centre | Sayers, William | Article in Journal | | 2013 |
| Review article: The English Reformation and the Church of Ireland | Jefferies, Henry | Article in Journal | | 2018 |
| Revisiting the Holy Well | Ó Giolláin, Diarmuid | Article in Journal | | 2005 |
| Revival of re-invention : Columban traditions in nineteenth-century Derry | Lacey, Brian | Article in Journal | | 2004 |
| Revival on the causeway coast : the 1859 revival in and around Coleraine | Railton, Nicholas M. | Monograph or Collective Volume | Christian Focus | 2009 |
| Richard Ledrede, English Franciscan and bishop of Ossory, 1317-1360 | Neary, Ann | Article in Journal | | 1984 |
| Richard of Dundalk | Dunne, Michael | Article in Book | | 2012 |
| Richard Pococke, Bishop of Ossory, 1756-65 | Hartin, James, Rev. | Article in Journal | | 1984 |
| Ritual, gender and power strategies, male pilgrimage to Saint Patrick's Purgatory | French, Dorothea R. | Article in Journal | | 1994 |
| Ritual, religion and the performance of memory in the Irish Free State | Godson, Lisa | Article in Book | | 2015 |
| RMS Titanic - Dungiven connection | Hasson, Seamus | Article in Journal | | 2012 |
| Rome and Kenmare : Margaret Cusack and Ultramontane print culture | Maume, Patrick | Article in Book | | 2010 |
| Ross Union of parishes | Peters, Christopher | Article in Journal | | 2000 |
| Royal and saintly Cashel | Finn, Andrew | Monograph or Collective Volume | Catholic Truth Society of Ireland | 1929 |
| Rules of the Rathanna and Borris Religious Community, drawn up in April, 1835; revised and improved January 1846 | Anonymous | Article in Journal | | 2004 |
| Rutherford Waddell (c.1850-1932) : Irish Presbyterian radical in New Zealand | Hargaden, Kevin | Article in Book | | 2015 |
| S. Augustine's Church Londonderry: Triennial Book 1961-64 | Tyndall, Charles J. | Monograph or Collective Volume | Ecclesiastical Press | 1963 |
| S. Columb's Cathedral Londonderry : historical guide, 1952 | King, R.G.S. | Monograph or Collective Volume | David Irvine, Waterloo Printing Works [Printer] | 1952 |
| Sacramentaries of the old Irish church | Hennig, John | Article in Journal | | 1961 |
| Sacred places and pilgrimage in the Archdiocese of Dublin | Liston, Bríd | Monograph or Collective Volume | Veritas | 2000 |
| Sacred Spaces to Public Places | Curtis, Joe | Monograph or Collective Volume | First Return | 2021 |
| Sacred time in early Christian Ireland : the monks of the Navigatio and the Céli Dé in dialogue to explore the theologies of time and the Liturgy of the Hours in pre-Viking Ireland | Rumsey, Patricia M. | Monograph or Collective Volume | Continuum / T & T Clark | 2007 |
| Sacred time in early Christian Ireland : the Nauigatio and the Céilí Dé in dialogue to explore the theologies of time and the liturgy of the hours in pre-Viking Ireland | Rumsey, Patricia M. | Thesis | | |
| Sacred waters : holy wells and water lore in Britain and Ireland | Bord, C.Bord, J. | Monograph or Collective Volume | Granada | 1985 |
| Sailm na nGrád (Sailm 119-133/120-134) i Stair Iosrael agus is Stair na hEixigféise | Mac Conmara, Mairtín | Article in Book | | 1997 |
| Saint Brendan and the crystal pillar | Carey, John | Article in Book | | 2012 |
| Saint Columba : his life and legacy | Lacey, Brian | Monograph or Collective Volume | Columba | 2013 |
| Saint Fachtna | Maguire, George | Article in Journal | | 2011 |
| Saint Manchan’s Shrine: Art and Devotion in twelfth-century Ireland | Murray, GriffinO'Dwyer; Kevin | Monograph or Collective Volume | Offaly County Council | 2022 |
| Saint Nicholas' Church, Carrickfergus: Gleanings from its life-story of seven centuries. | Rutherford, J. C. | Monograph or Collective Volume | [St Nicholas' Church, Carrickfergus] | 1935 |
| Saint Patrick's Cathedral Dublin : The Wider Church: Lenten Addresses 2005 | Saint Patrick's Cathedral | Monograph or Collective Volume | Saint Patrick's Cathedral | 2005 |
| Saint Patrick's Purgatory, Lough Derg | McGuinness, Joseph | Monograph or Collective Volume | Columba | 2000 |
| Saint Patrick: Life, Legend and Legacy | Broderick, Marian | Monograph or Collective Volume | The O'Brien Press | 2019 |
| Saints and Devotional Cultures | Heimann, Mary : Delay, Cara | Article in Book | Oxford University Press | 2023 |
| Saints of south Donegal | Ó Riáin, Pádraig | Article in Book | NA | 2015 |
| Sancta Brigida abroad : a tale of two cities | Ní Mheara, R. | Article in Journal | | 1999 |
| Scáthán shacramuinte na haithridhe: scáthán na sacraiminte céanna. | Mac Craith, Mícheál | Article in Book | | 2000 |
| Scenting the paper rose : the Ulster-Scots quest for music as identity | Vallely, Fintan | Article in Book | | 2008 |
| Schools and the politics of religion and diversity in the Republic of Ireland Separate but equal? | Fischer, Karin | Monograph or Collective Volume | Manchester University Press | 2016 |
| Science and Religion Before and After Darwin | Adelman, Juliana ; Mathieson, Stuart | Article in Book | Oxford University Press | 2024 |
| Science, politics and society in early-nineteenth-century Ireland : the Reverend William Richardson | Blackstock, Allan | Monograph or Collective Volume | Manchester University Press | 2013 |
| Scoti Peregrini in Sankt Jakob : 800 Jahre Irisch-Schottische Kultur in Regensburg | | Monograph or Collective Volume | Verlag Schnell & Steiner | 2005 |
| Scribe and Limner in the Late Medieval Gaelic Manuscript Tradition | Ó Macháin, Pádraig | Article in Book | Edinburgh University Press | 2025 |
| Seán Dunne's 'The Road to Silence': An anomalous spiritual autobiography | Rogers, James Silas | Article in Journal | | 2014 |
| Seanmóin ar an Deastógáil, c.1825 | Ó Broin, Gréagóir | Article in Journal | | 2023 |
| Seanmóirí an Easpaig Séamas Ó Gallchóir: eagráin, aistriúcháin agus aidhmeanna | Mac Murchaidh, Ciarán | Article in Book | | 2012 |
| Searmanas cois teallaigh choigilt na tine. | Ó Catháin, Séamas | Article in Book | | 1999 |
| Secular Franciscans down the ages | Conlon, Patrick | Monograph or Collective Volume | Secular Franciscans | 1979 |
| Secunda Brigida : Saint Ita of Killeedy and Brigidine tradition | Bray, Dorothy Ann | Article in Book | | 1992 |
| Seeing the face of God: An example of conversion in the seventh-century Patrician lives | Dawson, Elizabeth | Article in Book | | 2012 |
| Seeking a Protestant Purgatory: resonances in twentieth-century Anglo-Irish writing | D'Alton, Ian | Article in Journal | | 2014 |
| Select documents XXXIX. The religious outlook of a Gaelic lord : a new light on Thomas Óg Maguire | | Article in Journal | | 1986 |
| Senchas Gall Átha Cliath : aspects of the cult of St. Patrick in the twelfth century | Boyle, ElizabethBreatnach, Liam | Article in Book | | 2015 |
| Set on a hill : the story of Knockbreda Parish Church | Wood, R. Ernest | Monograph or Collective Volume | Universities Press [Printer] | 1987 |
| Seven Generations: Carrickatee, A History of Gatherings | Larkin, Tom | Monograph or Collective Volume | Tom Larkin | 2021 |
| Seventeenth-century Ireland and Norway : peripheral Reformations in print? | Gillespie, Raymond, 1955-2024 | Article in Book | | 2020 |
| Seventeenth-century Irish catechisms : European or not | O'Reilly, Mary | Article in Journal | | 1996 |
| Sexual transgression, exclusion and redemption | Boyle, Elizabeth | Article in Book | | 2016 |
| Shaping an ‘indigenous’ liturgy: The case for Medieval Wales | Harper, Sally | Article in Book | | 2017 |
| Shillelagh : looking back | Tyner, Irene M. | Monograph or Collective Volume | Irene M. Tyner | 1992 |
| Short history of the parish of Billy | Johns, Adam A., Rev. | Monograph or Collective Volume | Impact Printing [Printer] | 1982 |
| Short history of the parish of Derrykeighan, from the dedication of the church of St Colman, 9th September 1831 to July 1981 | Johns, Adam A., Rev. | Monograph or Collective Volume | Bushfoot Press [Printer] | 1981 |
| Shrine at Arklow rock. Impressive ceremony at historic site | Anonymous | Article in Journal | | 1994 |
| Shrines of Ireland | Dunne, John J. | Monograph or Collective Volume | Veritas | 1989 |
| Signs and wonders : the origins, growth, development and significance of Assemblies of God in Great Britain and Ireland 1900-1980 | Allen, David | Thesis | | |
| Silex Sancti Michaelis: An acccount of the miracles of Skellig MIchael from thirteenth-century Bavaria | Ó Riain, Diarmuid | Article in Book | | 2022 |
| Simon Fitzsimon's journey to the Holy Land in 1323 | Krasnodebska-D'Aughton, Malgorzata | Article in Book | | 2015 |
| Sister Ina O'Donovan | O'Donovan, Donal | Article in Journal | | 2011 |
| Sisters of the priory confraternity of Christ Church, Dublin, in the late middle ages | Lennon, Colm | Article in Book | | 2023 |
| Sixty years of church life in St. Nicholas' Parish, Belfast : a souvenir of the opening of the parish hall, 31st January, 1959 | Mercer, John, Rev. | Monograph or Collective Volume | M & W. Publications. | 1959 |
| Skellig Michael | Scully, Diarmuid | Article in Book | | 2012 |
| Society and economy, 1815-70 | Connolly, Seán J. | Article in Book | | 2011 |
| Some account of the Church Plate of the Diocese of Cashel and Emly | White , John Davis | Monograph or Collective Volume | John Davis White | 1887 |
| Some account ot St. Brigid, the See of Kildare, with its Bishops, and the Cathedral, now restored | Sherlock, W. | Monograph or Collective Volume | Hodges, Figgis | 1896 |
| Some ancient deeds of the Parishes of St. Werburgh, Dublin : 1243-1676 | Twiss, Henry F. | Article in Journal | | 1919 |
| Some aspects of Early Irish Eucharistic devotion | McNamara, Martin | Article in Book | | 2012 |
| Some historical memoranda respecting the territory of Kilwarlin and a few of the places neighbouring as well as included. | Hume, Abraham | Monograph or Collective Volume | Privately printed. T. Brakell [Printer] | 1866 |
| Some holy wells in Valencia and Portmagee | Delap, M. J. | Article in Journal | | 1997 |
| Some Irish associations with Sicily | Savage, Roland | Article in Journal | | 1943 |
| Some more dusty documents - "Wanderers for Christ" | Angelus, Father, OFMCap. | Article in Journal | | 1935 |
| Some reflections on theology and popular piety: fruitful or fraught relationship?’ | Ryan, Salvador | Article in Journal | | 2012 |
| Songs for the Peregrini: Proper Chants for Irish Saints in Continental Manuscripts | Casey, Sara G. | Article in Book | | 2017 |
| Spectral lordship, popular memory and the boggart of Towneley Hall | Wood, Andy | Article in Book | | 2017 |
| Spioradáltacht na h-Éireann san Meánaoiseanna agus an cúlra staire | Ó Duibhir, Peadar | Article in Book | | 1988 |
| Spioradáltacht na Muintire | Ní Thiarnaigh, Éilis | Article in Book | | 1997 |
| Spioradáltacht Thamhlachta | Ó Fiannachta, Pádraig | Article in Book | | 1977 |
| Spiritual and religious Life-Writing in Ireland since 1900 | Fuller, Louise | Article in Book | | 2018 |
| Spiritual perception and the evolution of the Irish Quakers | Harrison, Richard S. | Article in Book | | 1996 |
| Spirituality and religion in oral tradition | | Article in Book | | 2002 |
| St Abbán’s charm | Ó Néill, Pádraig P. | Article in Book | | 2019 |
| St Brendan and the Eucharist : liturgical imagination in high medieval Irish narrative | Neville, Robyn | Article in Book | | 2012 |
| St Cartha's : Sacred sites in the Parish of Kilcar, Co. Donegal | Campbell, Catherine | Monograph or Collective Volume | Catherine Campbell | 2001 |
| St Colmcille's Well, Ardsbeg, Co. Donegal | Ó Laoire, Lillis | Article in Journal | | 2014 |
| St Columban : monk or missionary? | Walker, G. S. M. | Article in Book | | 1970 |
| St Columbanus (c. 543-616): missionary of unity | Clancy, Finbarr G. | Article in Book | | 2012 |
| St Columbanus's Instructio XIII on the Eucharist | Clancy, Finbarr G. | Article in Book | | 2012 |
| St Edmund : patron saint of Ireland? | Young, Francis | Article in Journal | | 2020 |
| St Eunan's Cathedral, Letterkenny | Ó Baoighill, Pádraig, Rev. | Article in Book | | 2013 |
| St Fursa, the genealogy of an Irish saint—the historical person and his cult | Hamann, Stefanie | Article in Journal | | 2012 |
| St Isidore's: Rome and Donegal | Canning, B. J. (Bernard J.) | Article in Journal | | 2012 |
| St John's Church, Fivemiletown, 1736-1986 | Johnston, Jack | Monograph or Collective Volume | [St John's Church] | 1986 |
| St Kevin's way: A one-day camino to Glendalough | Doran, Kevin | Article in Book | | 2012 |
| St Kilian of Würzburg: An Irish monk in the golden age | Flynn, Gabriel | Article in Book | | 2012 |
| St Mary and St Michael parish church, New Ross, 1902-2002 | Cullen, L. M. (Louis Michael)Others | Monograph or Collective Volume | A & A Farmar | 2001 |
| St Mary's Church of Ireland, Julianstown, Co. Meath | Rutherford, Janet E. | Article in Book | | 2012 |
| St Patrick and Celtic spirituality | McSweeney, John | Article in Journal | | 1990 |
| St Patrick's Bachall Isu : its origins, traditions, and rise to prominence as Armagh's premier relic | Erskine, Sarah Christine | Article in Journal | | 2013 |
| St Patrick's Purgatory | J. E. | Article in Journal | | 1984 |
| St Patrick's Purgatory : pilgrimage motifs in a medieval otherworld vision | Zaleski, C. G. | Article in Journal | | 1985 |
| St Patrick's Purgatory and St Peter's Turas | Meehan, Helen | Article in Journal | | 2017 |
| St Patrick's Purgatory in the seventeenth century: a place to fight | Dolan, Phelim | Article in Journal | | 2022 |
| St Patrick's Purgatory, Lough Derg : keeping 'an ancient vow' | Conway, Eamonn | Article in Book | | 2012 |
| St Patrick's Purgatory, Lough Derg, county Donegal | Flynn, L. J. | Monograph or Collective Volume | Eason | 1986 |
| St Peter Martyr and his cult in Ireland | Higgins, Jim | Article in Journal | | 2023 |
| St Willibroird's Carlow connection | Mulligan, Dermot | Article in Journal | | 2018 |
| St. Brendan's Sydenham in the twentieth century: a historical narrative | Johnston, Sam | Monograph or Collective Volume | | 2001 |
| St. Canice's graveyard | Phelan, Margaret | Article in Journal | | 1984 |
| St. Columba's Church, Parish of Whiterock [Diocese of Connor] | Cunningham, R. S. | Monograph or Collective Volume | Castle [Printers] | 1978 |
| St. Doulagh's Church in the Diocese of Dublin | St. Doulagh's Church | Monograph or Collective Volume | [St. Doulagh's Church] | 1966 |
| St. Doulagh's Church, County of Dublin | | Monograph or Collective Volume | Church of Ireland Printing and Publishing Co. | c. 1860 |
| St. Fethlimidh's Cathedral, Kilmore: a short history | Combe, John Charles | Monograph or Collective Volume | [Kilmore diocese]|Printed by L.M. Press, Lurgan, Co. Armagh | 1993 |
| St. Finnian's, Cregagh : the story of the first fifty years 1932-1982 | Hammond, David | Monograph or Collective Volume | [David Hammond] | 1982 |
| St. Jarlath of Tuam | Kelly, Richard J. | Article in Journal | | 1900 |
| St. John's Church, Islandmagee 1595-1986 : a short history | Waring, Joseph | Monograph or Collective Volume | [St John's Church, Islandmagee] | 1986 |
| St. John's Church, Kilteevogue, 1879-1979 | Carson, G. J. A. | Monograph or Collective Volume | [St. John's Church, Kilteevogue] | 1979 |
| St. John's Church, Mounttown | McGovern, Brendan | Article in Journal | | 2010 |
| St. John's Church, Newcastle : a brief history, 1832-1982 | Jackson, J. G. | Monograph or Collective Volume | [St John's Church] | 1982 |
| St. Joseph's well, Dough/Annagh parish of Kilmurry, Ibrickane, Co. Clare : a photographic and oral documentation | Lysaght, Patricia | Article in Journal | | 2001 |
| St. Maelruain: Tallaght's Own Saint | Comerford, Patrick | Monograph or Collective Volume | Patrick Comerford | 1992 |
| St. Mark's Dundela, Diocese of Down : its annals and archives | | Monograph or Collective Volume | S.P.C.K. | 1932 |
| St. Mary's church, Bannow, in 1840 | de Vál, Séamas S. | Article in Journal | | 2013 |
| St. Mary's Church, Kinenaule : 150 years - 1865-2015 | Killenaule-Moyglass Parish Journal Committee | Monograph or Collective Volume | | 2015 |
| St. Mary's Church, Mary Street, Dublin | Hobson, G. D. | Monograph or Collective Volume | [G.D. Hobson] | c. 1963 |
| St. Mary's parish church, Newry : its history, memorials, vicars, curates, and churchwardens | Reside, S. Wilson | Monograph or Collective Volume | Newry Telegraph Office [Printer] | 1933 |
| St. Mary's well, Killarney, seven centuries of rounds | Ó Luanaigh, Tomás B. | Article in Journal | | 2001 |
| St. Matthew's Church, Shankill Parish, Belfast, 1872-1972 | Campbell, A. J. E. | Monograph or Collective Volume | [St. Matthew's Church, Shankill Parish] | 1972 |
| St. Michael's Church - Drumlion - Co. Roscommon, 1856-2006 : church, people and landscape | | Monograph or Collective Volume | Drumlion sesquicentennial Committee | 2006 |
| St. Patrick's Cathedral kalendar of anniversaries | Bernard, J.H. | Monograph or Collective Volume | Ponsonby & Gibbs | 1904 |
| St. Patrick's Church Jordanstown, 1868-1958 | McCappin, William J., Rev. | Monograph or Collective Volume | Northern Whig (printer) | 1958 |
| St. Patrick's Church Jordanstown, 1868-1993 | McCappin, William J., Rev.,Rodgers, Derek | Monograph or Collective Volume | Regency Press (printer) | 1993 |
| St. Patrick's Church, Ballymena : centenary sounvenir of consecration, 1855-1955 | Craig, C. H. B., Rev. | Monograph or Collective Volume | [St Patrick's Church] | 1955 |
| St. Patrick's Church, Ballymena: Centenary souvenir : St Patrick's day, 1853-1953 | St. Patrick's Church | Monograph or Collective Volume | Ecclesiastical Press | 1954 |
| St. Patrick's Church, Kildrumferton: history of the parish, 1812-2012 | Acheson, Patricia | Monograph or Collective Volume | [Kildrumferton Parish] | 2012 |
| St. Patrick's Church, Monaghan | Berry, Ian | Monograph or Collective Volume | [St Patrick's Church] | 2002 |
| St. Patrick's Day: commemoration, conflict and conciliation, 1900-2013 | Walker, Brian | Article in Book | | 2017 |
| St. Patrick's parish church, Newry, 1578 AD-1978 AD : a short historical guide | Heasley, S. J. | Monograph or Collective Volume | [J. Hollywood Printers] | 1978 |
| St. Polycarp's Church, Finaghy: the first fifty years, a brief history 1932-1982 | Hall, James R. | Monograph or Collective Volume | [Finaghy parish] | 1982 |
| St. Simon's: 50 years, 1930-1980 | Mason, Edwin | Monograph or Collective Volume | [St Simon's parish] | 1980 |
| Stations past | Somers, Nancy | Article in Journal | | 1996 |
| Storia delle religioni | Venturi, Pietro Tacchi | Monograph or Collective Volume | Utet | 1954 |
| Storia religiosa dell'Irlanda | | Monograph or Collective Volume | Centro Ambrosiano | 2001 |
| Struell wells | Meek, Marion | Article in Journal | | 1995 |
| Struell wells : pagan past and Christian present | McCormick, Finbar | Article in Journal | | 2009 |
| Studies in Irish hagiography : saints and scholars | | Monograph or Collective Volume | Four Courts | 2001 |
| Studies to 'Visiones Georgii', 1-3 | Hammerich, L. L. | Article in Journal | | 1939 |
| Suicide and religion in Ireland : an investigation of Thomas Masaryk's theory of suicide | Kelleher, Michael J.
Chambers, Derek
Corcoran, Paul | Article in Journal | | 1999 |
| Sunday in the Irish church | Maher, Michael | Article in Journal | | 1994 |
| Supernational catholicity : Dublin and the 1932 Eucharistic Congress | Boyd, Gary A. | Article in Journal | | 2007 |
| Survey of the holy wells in Moycashel barony | O'Brien, Caimin | Article in Book | Geography Publications | 2022 |
| Swear not at all! | Bewley, Rachel | Article in Book | | 2013 |
| Symbolic and social roles of women in death ritual in traditional Irish society | Butler, Jenny | Article in Book | | 2008 |
| Taboos and penitence : Christian conversion and popular religion in early medieval Ireland | Farrell, Elaine Dos Santos Pereira | Thesis | | 2013 |
| Tadhg Gaelach Ó Súilleabháin's 'Pious Miscellany': editions of the Munster bestseller of the early nineteenth century | Sharpe, Richard | Article in Journal | | 2014 |
| Tadhg Ó Cianáin's Imeacht na nIarlaí as European pilgrimage | Carroll, Clare | Article in Book | | 2010 |
| Téacsanna draíochta in Éirinn sa mheánaois luath. | Carey, John | Article in Book | | 2000 |
| Teagasc Críostaí Uí Eoghasa | Mag Raghnaill, Fearghal | Article in Journal | | 1961 |
| Teagasc na Scrioptúr agus na Diagachta as Breatnais | Thomas, Isaac | Article in Book | | 1997 |
| Teicht do Róim | Mac Cana, Proinsias | Article in Book | | 2002 |
| Telling the Presbyterian story in eighteenth-century Ireland : John McBride and James Kirkpatrick | Armstrong, Robert | Article in Book | | 2017 |
| The "Christian Society" of Garret Fitzgerald and Pierre Elliott Trudeau | Dunlop, Joseph | Article in Journal | | 2009 |
| The "lost" Irish 84-year Easter table rediscovered | Mc Carthy, Daniel P., 1945-Ó Cróinín, Dáibhí | Article in Journal | | 1990 |
| The "merry wake" | Ó Crualaoich, Gearóid | Article in Book | | 1998 |
| The 'battlefield of the schoolroom' : Irish children and Ireland's spiritual empire | Bateman, Fiona | Article in Book | | 2012 |
| The 'chaplaincy question' at Belfast District Asylum, 1834-1870 | Griffiths, David V.Prior, Pauline M., | Article in Book | | 2012 |
| The 'Rebaptism' of Suibhne | Frykenberg, Brian | Article in Journal | | 2017 |
| The 'Shannon' shrine : a suggested provenance | Ó Floinn, Raghnall | Article in Book | | 2015 |
| The 1859 revival in Mid-Antrim. Some sesquicentenary comment on people and places | Dunlop, Eull | Article in Journal | | 2009 |
| The 1932 Congress and the Irish diaspora | O'Dwyer, Rory | Article in Book | | 2012 |
| The 31st International Eucharistic Congress, 1932 | O'Hara, Aidan | Article in Journal | | 2013 |
| The 50th International Eucharistic Congress, Dublin, 2012: communion with Christ and with one another | Fuller, Louise | Article in Book | NA | 2012 |
| The Abbey of Athenry | Blake, Martin J. | Article in Journal | | 1902 |
| The Abbey of Molana, Co. Waterford | Power, Patrick | Article in Journal | | 1932 |
| The absent presence | O'Shea, Donagh | Article in Book | | 2012 |
| The act book of the Armagh diocese, 1518-22: a text and introduction | McCafferty, John | Thesis | | 1992 |
| The ancient pilgrim path between Ballintubber Abbey and Croagh Patrick | Fahey, Frank | Article in Book | | 2012 |
| The apple branch : a path to Celtic ritual | Kondratiev, Alexei | Monograph or Collective Volume | Collins Press | 1998 |
| The archaeological history of hermitages and eremitic communities in medieval Britain and beyond | Roffey, Simon | Monograph or Collective Volume | Routledge | 2023 |
| The archaeology of early Christianity in the North of Ireland | Hamlin, AnnKerr, Thomas R. (Thomas Robert), 1972- | Monograph or Collective Volume | Archaeopress | 2007 |
| The archaeology of the Augustinian abbey of St Mary, Ferns: the cloister | Lynch, LindaMandal, StephenO’Keeffe, TadhgO’Meara, DanielShine, Denis | Article in Book | | 2023 |
| The architecture of sacral kingship in twelfth-century Ferns: the church of St Mary’s Abbey | O’Keeffe, Tadhg | Article in Book | | 2023 |
| The arma Christi in medieval and early modern Ireland | Ryan, Salvador | Article in Book | | 2014 |
| The Augustinian canons and the development of late medieval Irish pilgrimage | Nugent, Louise | Article in Book | | 2019 |
| The authority of the contemplative in Muirchú's life of Patrick | Bracken, Damian | Article in Book | | 2013 |
| The Bangors and Ballyculter: an historical sketch of the Parish of Ballyculter (Strangford) | Kennedy, William E. | Monograph or Collective Volume | [Mourne Observer] (printer) | 1980 |
| The beginnings of the devotional revolution in Ireland: the Parish Mission Movement, 1825-1846 | Larkin, Emmet
| Article in Journal | | 2014 |
| The bells of saints | Ní Chatháin, Próinséas | Article in Book | | 2015 |
| The Bible and 'the People' in Ireland, c.1100-c.1650 | Ryan, Salvador | Article in Book | | 2018 |
| The bible and national identity in the British Isles, c.1650-c.1750 | Mandelbrote, Scott | Article in Book | | 1998 |
| The Bible in Ireland | Ó Fearghail, Fearghus | Article in Book | | 2012 |
| The Bible in Irish spirituality | McNamara, Martin | Article in Book | | 1981 |
| The Black Death in Kilkenny | Williams, Bernadette | Article in Book | | 2016 |
| The Blessed Virgin Mary | O'Brien, Susan | Article in Book | Oxford University Press | 2023 |
| The Blessed Virgin's Joys and Sorrows | Breeze, Andrew | Article in Journal | | 1990 |
| The Book of Ogham | Kelly, Michael | Monograph or Collective Volume | Lodestar | 2005 |
| The boycott at Fethard-on-sea, county Wexford, 1957 | Broderick, Eugene | Article in Journal | | 2009 |
| The built environment and material culture of Ireland in the 1641 Depositions, 1600-1654 | Carlson, Heidi Julia | Thesis | | |
| The built environment of local community worship between the late eleventh and early thirteenth centuries | O'Keeffe, Tadhg | Article in Book | | 2006 |
| The Cailleach and the Cosmic Hare | Lehane, Shane | Article in Book | | 2019 |
| The call of the north : a history of the Sisters of Mercy, Down and Connor Diocese, Ireland, from the founding to the Mercy Irish National Union, 1854-1994 | Duddy, Marie | Monograph or Collective Volume | Ulster Historical Foundation | 2010 |
| The canons and canonesses of St Augustine at Clonfert | Cunniffe, Christy | Article in Book | | 2019 |
| The Capuchins in Ireland | Paschal, Father | Article in Journal | | 1964 |
| The Carnmoney connection : a history of Carnmoney Parish from 1796 - 1985 | Scott, Ernest V. | Monograph or Collective Volume | [Carnmoney Parish] | 1985 |
| The Caroline tradition in the Church of Ireland, with particular reference to Bishop J. Taylor | Bolton, F. R. | Monograph or Collective Volume | SPCK | 1958 |
| The Cathedral Church of Belfast | Thompson, Herbert Marshall | Monograph or Collective Volume | W. & G. Baird [Printer] | 1925 |
| The cathedral church of the Holy and Undivided Trinity of Down, Downpatrick | Parkinson, R.E. | Monograph or Collective Volume | Talbot Press (SPCK) [Printers] | 1958 |
| The Catholic chapel and the Catholic community : observance and tradition in nineteenth-cnetury County Down | Rafferty, Oliver P. | Article in Book | | 1997 |
| The Catholic Church and religious culture in nineteenth-century Mayo | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2014 |
| The Catholic church in county Kilkenny 1600-1800 | Ó Ferghail, Fearghus | Article in Book | | 1990 |
| The Catholic church in county Tipperary, 1700-1900 | Whelan, Kevin | Article in Book | | 1985 |
| The Catholic church in the present world | Ehler, Sidney Z. | Article in Journal | | 1962 |
| The catholic clergy in Ireland, 1820-45 | Cahill, Brid | Thesis | | 1975 |
| The Catholic Community in the Seventeenth and Eighteenth Centuries | Corish, Patrick J. | Monograph or Collective Volume | Ulster Historical Foundation | 2021 |
| The Catholic laity in Dublin, 1920-1940 | Hartigan, Maurice | Thesis | | 1992 |
| The Catholic Lectionary: Its creation, reception and challenge | O'Mahony, Kieran J. | Article in Book | | 2018 |
| The Catholic reformation in seventeenth-century Ireland : Vincent de Paul's missionaries in Munster | Forrestal, Alison | Article in Book | | 2012 |
| The Celtic churches in our Dublin Diocese | Lewis-Crosby, E. H. | Monograph or Collective Volume | Church of Ireland Printing Co. | 1932 |
| The Celtic concept of the gods : some preliminary remarks | Frey, Otto-Herman | Article in Book | | 2004 |
| The Celtic cross : a collection of fifteen hundred years of devotion by Irish churchmen | Jackson, Robert Wyse | Monograph or Collective Volume | A.P.C.K. | 1954 |
| The Celtic evil eye and related mythological motifs in Medieval Ireland | Borsje, Jacqueline | Monograph or Collective Volume | Peeters | 2012 |
| The Celtic monk : rules and writings of early Irish monks | Ó Maidín, Uinseann | Monograph or Collective Volume | Cistercian Publications | 1996 |
| The Celtic oratory | Heywood, Veronica | Article in Journal | | 2012 |
| The centenary of Long Tower, Derry | Canning, B. J. (Bernard J.) | Article in Journal | | 2009 |
| The century of religious zeal, 1800-74 | | Article in Book | | 2002 |
| The change of religion | MacCulloch, Diarmaid | Article in Book | | 2001 |
| The changing theory and practice of Irish pilgrimage | Hughes, Kathleen | Article in Journal | | 1960 |
| The Christianization of Society | Price, Huw | Article in Book | | 2003 |
| The Church in England and Wales: An Historical Overview, | Bullivant, Stephen | Article in Book | Oxford University Press | 2023 |
| The church in late medieval County Louth | Jefferies, Henry A | Article in Book | NA | 2023 |
| The church in the catacombs | Keogh, Dáire | Article in Book | | 2012 |
| The Church of Ireland and the native Irish population in plantation Ulster | Ó hAnnracháin, Tadhg | Monograph or Collective Volume | University College Dublin | 2010 |
| The Church of Ireland diocese of Ferns, 1945-65 : a female perspective | O'Connor, Catherine | Article in Book | | 2008 |
| The Church of Ireland in Belfast its growth, condition, needs. The proposed division of the Diocese of Down and Connor and Dromore: the story of the churches, 1778-1931 / by John Frederick MacNeice.|Also a chapter on St Anne's Cathedral, Belfast, by His honour Judge Thompson | MacNeice, John Frederick | Monograph or Collective Volume | William Mullan & Sons | 1931 |
| The Church of Ireland in South Tipperary in the twentieth century | McCarthy, Robert | Article in Journal | | 2007 |
| The Church of Ireland under the Stuarts | | Monograph or Collective Volume | Four Courts Press | 2025 |
| The Church of Saint Patrick in Ulster: a short guide to history | Barry, John | Monograph or Collective Volume | The Diocesan Pilgimage Committee of Down and Dromore | 1961 |
| The church of the Good Shepherd Sion Mills (parish of Urney) | [Davey, W. E.] | Monograph or Collective Volume | [Parish of Urney] | 1965 |
| The church on the corner - Saint Donard's Parish 1900-1990 | Easton, Christopher R.A. | Monograph or Collective Volume | Ulster Services [Printer] | 1990 |
| The church on the West of the Bann : the story of Killowen Parish | Maconachie, Alwyn | Monograph or Collective Volume | A Bard Production | 1997 |
| The church's worship in the beauty of holiness : a sermon preached on occasion of the re-opening of St. Patrick's Cathedral on the Festival of St. Mattias, 1865 | Trench, Richard Chenevix | Monograph or Collective Volume | Hodges, Smith | 1865 |
| The Church, 1050–1460 | Ó Clabaigh, Colmán N. | Article in Book | | 2018 |
| The Churchwardens’ Accounts of the Parishes of St Bride, St Michael Le Pole and St Stephen, Dublin, 1663–1702 | | Monograph or Collective Volume | Four Courts Press | 2020 |
| The civic pageantry of Corpus Christi in fifteenth-and sixteenth-century Dublin | Fletcher, Alan J. | Article in Journal | | 1996 |
| The concept of purgatory in ninth-century Ireland | Etchingham, Colmán | Article in Book | | 2013 |
| The confraternities and cultural duality in Ireland, 1450–1550 | Lennon, Colm | Article in Book | Routledge | 2006 |
| The Confraternity of Christian Doctrine in Ireland : AD 1775-1835. A chapter of organised Catholic action through popular education | Brenan, Martin | Monograph or Collective Volume | Browne & Nolan | 1934 |
| The Congregational church in Mallow | Rutherford, Colman | Article in Journal | | 2012 |
| The contemporary Orange Order in Northern Ireland | McAuley, James W.Tonge, Jonathan | Article in Book | | 2008 |
| The continuity of Irish computistical tradition | Ó Cróinín, Dáibhí | Article in Book | | 2010 |
| The contribution of Irish Franciscans on the continent in the seventeenth century | Giblin, Cathaldus, OFM | Article in Book | | 1981 |
| The conversion experience : the case of Fr James O'Farrell, OP, 1785-7 | Kelly, James, 1959- | Article in Book | | 2005 |
| The Corpus Christi Procession diary, Rathnew, 1925-1934 | O'Reilly, Stan J. | Article in Journal | | 2004 |
| The counter-reformation and the people of catholic Ireland, 1596-1641 | Bossy, John | Article in Book | | 1971 |
| The Cross of Cong : a masterpiece of medieval Irish art | Murray, Griffin | Monograph or Collective Volume | Irish Academic Press | 2014 |
| The crystal fountain : the story of an inner journey | Mackey, Noreen | Monograph or Collective Volume | Columba | 2007 |
| The cult of Inghin Bhaoith and the church of Kilnaboy | MacMahon, Michael | Article in Journal | | 2000 |
| The cult of relics and expressions of wealth at eleventh- and twelfth-century Ferns | Colbert, Kate | Article in Book | | 2023 |
| The Cult of Relics in Early Christian Ireland | Wycherley, Niamh | Thesis | | 2012 |
| The cult of relics in early medieval Ireland. | Wycherley, Niamh | Monograph or Collective Volume | Brepols | 2015 |
| The cult of St Catherine of Alexandria in Co. Wexford | Culleton, Edward | Article in Journal | | 2013 |
| The cult of the holy well | Cordner, W. S. | Article in Journal | | 1946 |
| The cult of the sacred centre : essays on Celtic ideology | Mac Cana, Proinsias | Monograph or Collective Volume | School of Celtic Studies, DIAS | 2011 |
| The Cusack papers : new evidence on the Knock apparition | White, John | Article in Journal | | 1996 |
| The Daughters of Charity of St Vincent de Paul in Ireland : the early years | | Monograph or Collective Volume | Columba | 2014 |
| The daughters of the first earl of Cork : writing family, faith, politics and place | Walsh, Ann-Maria | Monograph or Collective Volume | Four Courts Press | 2020 |
| The decline of early Irish monasticism | Knox, R.B., Rev. | Thesis | | 1944 |
| The democratization of American Christianity | Hatch, Nathan | Monograph or Collective Volume | Yale University Press | 1989 |
| The descent of the Gods : creation, cosmogony and divine order in Lebor Gabála | Macleod, Sharon Paice | Article in Journal | | 2001 |
| The development of the Scottish catholic community, 1878-1978 | Ross, A. | Article in Journal | | 1978 |
| The devotional landscape of medieval Irish cultural Catholicism inter hibernicos et inter anglicos, c.1200 - c.1550 | Ryan, Salvador | Article in Book | | 2013 |
| The diary of Sr M. Alphonsus (Brigid) Shelly, Sister of Mercy, of her journey from Callan Co Kilkenny to Parramatta, Sydney, Oct. 9 - Nov. 29, 1888 | Grace, Pierce | Article in Journal | | 2025 |
| The diffusion of Adomnán's De Locis Sanctis in the medieval period | O'Loughlin, Thomas | Article in Journal | | 2000 |
| The Diocese of Dromore on the eve of the Tudor reformation | Jefferies, Henry A. | Article in Book | | 1997 |
| The diocese of Ferns and the penal days | Corish, Patrick J. | Article in Journal | | 1970 |
| The Diocese of Raphoe celebrates the 14th centenary of the death of Colmcille | Ó Fearraí, Cathal | Article in Journal | | 1997 |
| The dissolution of the Augustinian communities in the Pale during the Henrician period | Scott, Brendan | Article in Book | | 2019 |
| The dissolution of the monasteries and the parishes of the western liberty of Meath in the seventeenth century | Masterson, Rory | Article in Book | | 2016 |
| The Doors of His Face : Early Hell-Mouth Iconography in Ireland | Neuman de Vegvar, Carol, 1953- | Article in Book | | 2008 |
| The drama of the medieval church | Young, Karl | Monograph or Collective Volume | [s.n.] | 1962 |
| The Duke of Sussex's Irish manuscript (Rylands Irish MS 22) | Sharpe, Richard | Article in Journal | | 2017 |
| The early history of Mayo of the Saxons | Orschel, Vera | Article in Book | | 2014 |
| The early history of the Book of Common Prayer in Ireland, 1551-1647 | Ferguson, Kenneth | Monograph or Collective Volume | Ireland Branch of the Prayer Book Society | 2022 |
| The early nineteenth century : patterns of change | Kerr, Donal A. | Article in Book | | 1981 |
| The early saints of County Louth | Cronin, Anthony | Article in Book | | 2023 |
| The end of all things earthly : faith profiles of the 1916 leaders | | Monograph or Collective Volume | Veritas | 2016 |
| The enduring power of the cult of relics - an Irish perspective | Wycherley, Niamh | Article in Book | | 2020 |
| The entring book of Roger Morrice (1677-1691) | Goldie, MarkHarris, TimKnights, MarkMcElligott, Jason, 1972-Morrice, Roger, 1628-1702Spurr, JohnTaylor, Stephen, 1960- | Monograph or Collective Volume | Boydell Press | 2007 |
| The ephemera of eternity : the Irish Catholic memorial card as material culture | Bolger, MaryAnn | Article in Book | | 2011 |
| The Eucharist in medieval Irish narrative : a brief survey of themes | Neville, Robyn | Article in Book | | 2012 |
| The Eucharist in the Stowe missal : words and actions in the Mass figures, symbols of higher truths | McNamara, Martin | Article in Book | | 2012 |
| The Eucharistic chrismal in early Christian Ireland | O'Donoghue, Neil Xavier | Article in Book | | 2012 |
| The Eucharistic Congress, Dublin 1932 | O'Dwyer, Rory | Monograph or Collective Volume | Nonsuch | 2009 |
| The Evangelicals in the Church of Ireland, 1784-1859 | Acheson, Alan | Thesis | | |
| The evolution of Ulster Protestant identity in the twentieth century: nations and patriotism | Hennessey, Thomas | Article in Book | | 2008 |
| The experience and understanding of religious revival in Ulster Presbyterianism c.1800-1930 | Holmes, Andrew R., 1977- | Article in Journal | | 2005 |
| The fairy tradition in Britain | Spence, J. L. T. C. | Monograph or Collective Volume | | 1948 |
| The feast days of the Blessed Virgin: Séamas Mac Cuarta's forgotten 'decade' | Watson, Seosamh | Article in Book | | 2019 |
| The Fennelly brothers and the Maynooth mission to India | Ní Chearbhaill, Máire | Article in Book | | 2015 |
| The Fethard-on-Sea boycott : Ireland 1957...the Catholic Church...a small village...a mixed marriage | Fanning, Tim | Monograph or Collective Volume | Collins Press | 2010 |
| The first hundred years, being a history of St. Mark's Parish Church, Ballysillan, Belfast | Macourt, William A. | Monograph or Collective Volume | [St. Mark's Parish, Ballysillan] | 1952 |
| The first liturgical catechism in Ireland | Hennig, John | Article in Journal | | 1949 |
| The flowering of the confraternities and sodalities in Ireland, c. 1860-c. 1960 | Kavanagh, RobinLennon, Colm | Article in Book | Columba | 2012 |
| The followers of Saint Francis in Donegal | Conlan, Pat | Article in Journal | | 2010 |
| The forgotten hermitage of Skellig Michael | Horn, WalterMarshall, Jenny WhiteRourke, Grellan D. | Monograph or Collective Volume | University of California Press | 1990 |
| The formative development of the Dominican and Franciscan orders in Ireland, with special reference to the Observant reform | Flanagan, J.G., Rev. | Thesis | | 1947 |
| The foundation charter of St Sythe's guild, Dublin, 1476 | Lennon, Colm | Article in Journal | | 1994 |
| The Franciscan convents in Connacht. With notes thereon | Blake, Martin J. | Article in Journal | | 1928 |
| The Franciscan third order at Dungannon | Mooney, Canice | Article in Journal | | 1954 |
| The Franciscans in Ireland, 1400-1534 : from reform to reformation | Ó Clabaigh, Colmán N. | Monograph or Collective Volume | Four Courts | 2002 |
| The fraternity of St Anne in St Audoen's parish, Dublin | Lennon, Colm | Article in Book | NA | 2012 |
| The function of hospitaller houses in England, Ireland, Scotland and Wales | Majoros, Christie | Thesis | | |
| The function of the martyrology of Tallaght | Hennig, John | Article in Journal | | 1964 |
| The future of the Legion [of Mary] | Duff, Frank | Article in Journal | | 1957 |
| The Glenstal Book of hours | Yvard, Catherine | Article in Book | | 2006 |
| The gods of the Celts | Green, Miranda J. | Monograph or Collective Volume | Suton | 1986 |
| The golden jubilee book of St. Peter's Church, Belfast, 1900 - 1950 | Breene, R. S. | Monograph or Collective Volume | [St Peter's Church] | 1900 |
| The gospel in glass : All Saints' Church, Portsalon, in the parish of Clondevaddock, County Donegal | McDonald, G. A. | Monograph or Collective Volume | [G.A. McDonald] | 1976 |
| The Great Law of Birr | Houlihan, James W. | Monograph or Collective Volume | Offaly County Council | 2023 |
| The growth and origin of the diocese of Meath | Brady, John, d.1963 | Article in Journal | | 1949 |
| The growth of devotion to the Sacred Heart in Ireland | Burke-Savage, Roland | Article in Journal | | 1968 |
| The hidden hand of God : the life of Veronica O'Brien and our common apostolate | Suenens, Léon Joseph | Monograph or Collective Volume | Vertias | 1994 |
| The high cost of dying : an analysis of pro anima bequests in medieval Dublin | Murphy, Margaret | Article in Book | | 1987 |
| The Historia of St Fintan of Rheinau | Hangartner, Bernhard | Article in Book | | 2017 |
| The History of the Parish of Glendermott | Coulter, J. A. | Monograph or Collective Volume | Derry Journal Ltd. {Printer) | 1958 |
| The holy island of Loch Cré: Monaincha, the thirty-first wonder of the world | Cunningham, George | Article in Book | | 2012 |
| The Holy Well at Ticknock | Curran, Peadar | Article in Journal | | 2019 |
| The holy well tradition : the pattern of St Declan, Ardmore, county Waterford, 1800-2000 | Ó Cadhla, Stiofán | Monograph or Collective Volume | Four Courts | 2002 |
| The holy wells and the parish | Carroll, Nuala | Article in Journal | | 1997 |
| The holy wells of Ballynacally and Lissycasey | Hester, Mary | Article in Journal | | 2015 |
| The holy wells of Co. Kildare | Jackson, Patricia | Article in Journal | | 1979 |
| The holy wells of County Louth | Conlon, Larry | Article in Journal | | 1999 |
| The holy wells of County Wicklow : traditions and legends | Lynch, Geraldine | Article in Book | | 1994 |
| The holy wells of Donegal | Morris, Henry | Article in Journal | | 1936 |
| The holy wells of Doora-Barefield parish | Lenihan, Edmund | Article in Journal | | 1993 |
| The holy wells of Kilmacduane parish | Lenihan, Edmund | Article in Journal | | 2004 |
| The holy wells of Kilshanny parish | Lenihan, Edmund | Article in Journal | | 1997 |
| The holy wells of St. Colmcille | O'Donnell, Eunan | Article in Journal | | 1997 |
| The holy wells of Wexford | Ó Broin, Gearóid | Article in Journal | | 1983 |
| The idea of monastic austerity in early Ireland | Etchingham, Colmán | Article in Book | | 1999 |
| The image of orthodoxy, the Mysterium Christi and insular gospel books | O'Reilly, Jennifer | Article in Book | | 2010 |
| The impact of English colonial expansion on Irish culture : the clergy, popular religion and the transformation of the family in early modern Galway | Connors, Thomas Gilroy | Thesis | | 1997 |
| The influence of the Irish Catholic clergy in shaping the religious and political allegiances of Irish Catholics, 1603-41 | Finnegan, David | Article in Book | | 2013 |
| The International Eucharistic Congress 1932 | Sobolewski, Peter | Article in Journal | | 2013 |
| The Ireland of Edward Cahill, SJ, 1868-1941 : a secular or a Christian state? | Morrissey, Thomas J. | Monograph or Collective Volume | Messenger Publications | 2016 |
| The Irish alternative : Scottish and English Presbyterianism in Ireland | Armstrong, Robert | Article in Book | | 2013 |
| The Irish and the "Americanization" of the "New Immigrants" in the Streets and in the Churches of the Urban United States, 1900–1930 | Barrett, James R.Roediger, David R. | Article in Journal | | 2005 |
| The Irish book of hymns | Ó Macháin, Pádraig | Article in Book | | 2012 |
| The Irish church in the sixteenth century | Mooney, Canice | Article in Journal | | 1963 |
| The Irish contribution to the penitential tradition | Meens, Rob | Article in Book | | 2016 |
| The Irish Dominicans, 800 years, 1224-2024 | Crotty, Terence | Monograph or Collective Volume | Dominican Publications | 2025 |
| The Irish episcopate and pastoral care, 1318-1534 | Burrows, Michael | Thesis | | 1986 |
| The Irish folklore archive | Ó Catháin, Séamas | Article in Journal | | 1991 |
| The Irish Franciscan continental colleges and the doctrine of the Immaculate Conception | Mac Craith, Mícheál | Article in Book | | 2019 |
| The Irish ideal of pilgrimage as reflected in the tradition of Colm Cille | Rekdal, Jan Erik | Article in Book | | 1994 |
| The Irish life of Saint Finnian of Clonard : master of the saints of Ireland | Hickey, Elizabeth | Monograph or Collective Volume | Meath Archaeological and Historical Society | 1996 |
| The Irish martyrs | | Monograph or Collective Volume | Four Courts | 2005 |
| The Irish medieval pilgrimage to Santiago de Compostela | Ó Riain-Raedel, Dagmar | Article in Journal | | 1998 |
| The Irish national pilgrimage to Bobbio 1923 | Orschel, Vera | Article in Book | | 2015 |
| The Irish shrines of our Lady | Canice, Fr. | Article in Journal | | 1947 |
| The Iveragh peninsula | Harbison, Peter | Article in Journal | | 2010 |
| The Jesuits and music in early modern Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 2022 |
| The journey to the grave and the feast of death-lying | Swift, Catherine | Article in Book | | 2016 |
| The Judeikins | Climbes, E. | Article in Journal | | 1991 |
| The Kilmallock shrine of the Little Flower | O'Mahony, Catherine | Article in Journal | | 2001 |
| The Knights Hospitallers in Co. Galway | Falkiner, C. L. (Caesar Litton) | Article in Journal | | 1905 |
| The laity and the Church of Ireland, 1000-2000 : all sorts and conditions | | Monograph or Collective Volume | Four Courts | 2002 |
| The laity in a changing society, 1830-1900 | Neely, W. G. (William G.) | Article in Book | | 2002 |
| The Lancashire Irish and the Catholic Church 1846-71 : the social dimension | Lowe, W. J. | Article in Journal | | 1976 |
| The languages of belief : nineteenth-century religious discourse in southwest Donegal | Taylor, L. J. | Article in Book | | 1992 |
| The late medieval friaries of the mendicant orders in County Mayo | McDermott, Yvonne | Article in Book | | 2014 |
| The late-medieval relics of Holy Trinity church, Dublin | Ó Floinn, Raghnall | Article in Book | | 2009 |
| The layperson in the parish : the medieval inheritance, 1169-1536 | Empey, C. A. (Adrian) | Article in Book | | 2002 |
| The legacy of St Dymphna | O'Brien, Breege | Article in Journal | | 1999 |
| The legacy of two remarkable women: Marie Martin (1892-1975) and Edel Quinn (1907-44) | Smyth, Isabelle | Article in Book | | 2012 |
| The life and writings of Jeremy Taylor | Stranks, C. J. | Monograph or Collective Volume | | 1952 |
| The lion on the hill : a history of St. Mark's Church, Dundela, Belfast, 1878-1998 | Beckett, J. C. (James Camlin) | Monograph or Collective Volume | Minprint [Printer] | 1998 |
| The Lismore gradual | Lawrence, Frank | Article in Book | | 2012 |
| The Little Ones Called for Bread and there was None that Would Break it for Them': Some notes on the use of the Bible in the sermons of Bishop James Gallagher | Mac Murchaidh, Ciarán | Article in Book | | 2018 |
| The liturgical background of the Derrynavlan altar service | Ní Chatháin, Próinséas | Article in Journal | | 1981 |
| The liturgy of the Irish on the continent | Hen, Yitzhak | Article in Book | | 2016 |
| The Lord and the Nun | Logue, Rose Mary | Article in Journal | | 2019 |
| The Lough Derg pilgrimage in the age of the Counter-Reformation | Cunningham, BernadetteGillespie, Raymond, 1955-2024 | Article in Journal | | 2004 |
| The Loughcrew Fires | Hand, Malachy | Article in Book | | 2016 |
| The Louvain Franciscans and the culture of print | Gillespie, Raymond, 1955-2024 | Article in Book | | 2013 |
| The Madonna of Lettershendony, Co. Derry | Jefferies, Henry A. | Article in Journal | | 1997 |
| The Marian shrine of Knock : the first decade | Donnelly, James S., Jr | Article in Journal | | 1993 |
| The Marian Society | Behan, Maura | Article in Journal | | 2000 |
| The mass in the early Irish church | Power, P. | Article in Journal | | 1942 |
| The materiality of devotion in late medieval northern Europe | | Monograph or Collective Volume | Four Courts | 2016 |
| The medieval office of St Patrick | Furlong, Senan | Article in Book | | 2017 |
| The Mediterranean legacy in early Celtic Christianity : a journey from Armenia to Ireland | Ghazarian, Jacob G. | Monograph or Collective Volume | Bennett & Bloom | 2006 |
| The member for Kilkenny, John Butler, 2nd Marquess of Ormond 1809-1854 | Butler, Hubert | Article in Journal | | 1984 |
| The memories are with me still|Memories | Timmons, Mauny | Article in Journal | | 2003 |
| The memory of 1641 and Protestant identity in Restoration and Jacobite Ireland | Gibney, John | Article in Book | | 2008 |
| The Middle Church of Ballinderry and Bishop Jeremy Taylor | Bigger, Francis Joseph, 1863-1926Fennell, William J. | Monograph or Collective Volume | Marcus Ward | c. 1910 |
| The minor traditions of British mythology | Spence, J. L. T. C. | Monograph or Collective Volume | | 1948 |
| The miraculous conformist: Valentine Greatrakes, the body politic, and the politics of healing in Restoration Britain | Elmer, Peter | Monograph or Collective Volume | Oxford University Press | 2013 |
| The monasteries of the Canons of Prémontré, c.1180–c.1607 | Clyne, Miriam | Article in Book | | 2019 |
| The monastery of Clonard | Byrne, Paul | Thesis | | 1980 |
| The monastery of Kildare and its secular aspects from its foundation to 1171 | Giboire, Christèle | Thesis | | 2000 |
| The monastery of Linn Duachaill | Clinton, Mark | Article in Journal | | 2013 |
| The monastery of Saint Mochaoi of Nendrum | Lawlor, H. C. (Henry Cairnes), 1870-1943 | Monograph or Collective Volume | The Belfast Natural History and Philosophical society | 1925 |
| The Moneystown Mass Paths | Timmons, Mauny | Article in Journal | | 2004 |
| The most traversed bridge : a reconsideration of elite and popular religion in late medieval Ireland | Ryan, Salvador | Article in Journal | | 2006 |
| The Munich Computus and the 84 (14) - year Easter reckoning | Warntjes, Immo | Article in Journal | | 2007 |
| The National Cathedral of St. Patrick, Dublin: discrimination of its ancient architecture and various reparations and discoveries, 1900. The new organ and its place : a report to the Dean and Cathedral Board | Drew, Thomas | Monograph or Collective Volume | Church of Ireland Printing and Publishing Co. | 1900 |
| The nature and character of the early Irish liturgy | Hen, Yitzhak | Article in Book | | 2010 |
| The Nazareth house, Fahan, Buncrana | Donnelly, Philip | Article in Journal | | 2010 |
| The Northern Ireland Labour Party and Protestant working-class identity | Edwards, Aaron | Article in Book | | 2008 |
| The Notre Dame fire and the cult of relics | Wycherley, Niamh | Article in Journal | | 2019 |
| The O'Dea mitre and crozier | Harpur, Anthony | Article in Book | | 2012 |
| The old days and the good | Anonymous | Article in Journal | | 1991 |
| The oldest register of the Parish of Derriaghy, County Antrim, Northern Ireland 1696-1772 | | Monograph or Collective Volume | W. N. C. Barr | 1981 |
| The origins of Ireland's holy wells | Ray, Celeste | Monograph or Collective Volume | Archaeopress Archaeology | 2014 |
| The other Christ : the cult of St Francis of Assisi in late medieval Ireland | Ó Clabaigh, Colmán N. | Article in Book | | 2006 |
| The other peregrinatio: Pilgrim nuns in medieval Regensburg and their Irish connections | Ó Riain-Raedel, Dagmar | Article in Book | | 2023 |
| The Oxford Dictionary of Saints | Farmer, D. H. | Monograph or Collective Volume | | 1978 |
| The Oxford Handbook of Religion in Modern Ireland | NA | Monograph or Collective Volume | Oxford University Press | 2024 |
| The parish church of St. Colmanell, Ahoghill | Lee, W. H. A., Rev. | Monograph or Collective Volume | Newton Publishing Co. (printer) | c. 1911 |
| The parish fraternities and county Meath in the late middle ages | Lennon, Colm | Article in Journal | | 2008 |
| The parish of Conwall, Aughanunshin and Leck | Lawrenson, L. R. | Monograph or Collective Volume | [Parish of Conwall, Aughanunshin and Leck] | [1943] |
| The parish of Craigs in the County of Antrim | Boyd, Hugh Alexander | Monograph or Collective Volume | Observer Office [printer] | 1950 |
| The parish of Devenish and Boho | Elliott, E. G. | Monograph or Collective Volume | Oakdene | 1990 |
| The Parish of Dungiven : memoirs of bygone days | Kelly, James, Rev. | Monograph or Collective Volume | Londonderry Sentinel (Printer) | 1935 |
| The Parish of Edenderry : Diocese of Derry | Law, Herbert Innes | Monograph or Collective Volume | Tyrone Constitution | 1949 |
| The parish of Lambeg | Marshall, H. C., Rev. | Monograph or Collective Volume | Victor McMurray | 1933 |
| The parish of Saint John the Evangelist, Dublin, 1600-1700 | Anderson, Katharine | Thesis | | 1997 |
| The parish of St. John Monkstown, Co. Dublin, centenary year 1960 : calendar of services and historical notes | Sharman, H. W. | Monograph or Collective Volume | Waugh Printers [printer] | 1960 |
| The paruchia of St Lúireach of the Uí Thuirtre | Muhr, Kay | Article in Book | | 2015 |
| The paruchia of St. Finbarr | O'Connor, Timothy P. | Thesis | | 1977 |
| The Patron, or festival of St Kevin at the Seven Churches, Glendalough, County Wicklow, 1813 | Crawford, W. H. (William Henry) | Article in Journal | | 1986 |
| The pattern | Ó Giolláin, Diarmuid | Article in Book | | 1998 |
| The pattern day | MacMahon, Bryan | Article in Book | | 2012 |
| The pattern of Mullinakill | Murphy, William | Article in Journal | | 1970 |
| The peak of Marianism in Ireland, 1930-60 | Donnelly, James S., Jr | Article in Book | | 2000 |
| The penal cross | Ó Fearghail, Fearghus | Article in Book | | 2012 |
| The penal laws : origins, purpose, enforcement and impact | McGrath, Charles Ivar | Article in Book | | 2021 |
| The Penguin guide to the superstitions of Britain and Ireland | Roud, Stephen | Monograph or Collective Volume | Penguin Books | 2003 |
| The perils of mission : from heroic sacrifice to self-care | Hogan, Edmund | Article in Book | | 2015 |
| The persuasive power of a mother's breast : the most desperate act of the Virgin Mary's advocacy | Ryan, Salvador | Article in Journal | | 2003 |
| The phenomenon of Copney stone circles | Foley, Claire | Article in Book | | 2010 |
| The Pope's children, génération lyrique. The decline of Catholic practices in Ireland's Celtic Tiger and Quebec's Révolution tranquille | Matte, Isabelle | Article in Journal | | 2007 |
| The portrayal of women in medieval Irish religious poetry | Murray, Kevin | Article in Book | | 2013 |
| The prayers before Mass on Sundays and holidays in Ireland | Brady, John, d.1963 | Article in Journal | | 1947 |
| The Presbyterian church in Mallow | Rutherford, Colman | Article in Journal | | 2013 |
| The Presbyterian response to the famine years 1845 to 1855 within Ireland and in the Highlands of Scotland | Stephen, John Rothney | Thesis | | |
| The Presbyterians of Ulster 1680-1730 | Whan, Robert | Monograph or Collective Volume | Boydell | 2013 |
| The priest and the miraculous cure at Knock of the political shoemaker’s daughter: religion and agitation in the early Land War | Hynes, Eugene | Article in Book | | 2014 |
| The principle of non-subscription to creeds and confessions of faith as exemplified in Irish presbyterian history | Allen, Robert, Rev. | Thesis | | 1944 |
| The production and consumption of sacred substances in Irish funerary tradition | Ó Crualaoich, Gearóid | Article in Book | | 1993 |
| The progress of Christianity in the Decies, 500-600 A.D. | O'Sullivan, Benedict | Article in Journal | | 1987 |
| The protestant inheritance and the new Ireland | Gwynn, E.J. (Edward John) | Article in Book | | 2016 |
| The Protestant Mystics | Fremantle, A. M. H. | Monograph or Collective Volume | | 1964 |
| The Protestant working class and the fragmentation of Ulster Unionism | Walker, Graham | Article in Book | | 2008 |
| The Psalter in early Irish monastic spirituality | McNamara, Martin | Article in Journal | | 1983 |
| The queen of Ireland : an historical account of Ireland's devotion to the Blessed Virgin | Concannon, Helena | Monograph or Collective Volume | Gill | 1938 |
| The quest for redemption : penitent demons leading Christians to salvation in medieval Christian Exempla literature | Newman, Coree | Article in Journal | | 2012 |
| The records of Dublins' protestant dissenting congregations | ffeary-Smyrl, Steven | Article in Journal | | 2009 |
| The records of the Society of Friends in Ireland | Greeves, J. R. H. | Article in Journal | | 1948 |
| The rector who wouldn't pray for rain | Semple, Patrick | Monograph or Collective Volume | Mercier Press | 2007 |
| The rectors of Clonleigh since the Reformation | Edwards, William Macklin | Monograph or Collective Volume | [Clonleigh Parish] | 1884 |
| The Redemptorists in Ireland, 1851-2011 | McConvery, Brendan | Monograph or Collective Volume | Columba | 2012 |
| The reformed preacher : Irish Protestant preaching, 1660-1700 | Gillespie, Raymond, 1955-2024 | Article in Book | | 2001 |
| The regular canons and Irish hagiography | Ó Riain, Pádraig | Article in Book | | 2019 |
| The regular canons in early modern Ireland | Galban, Clemens | Article in Book | | 2019 |
| The religion of Irish Protestants : a view from the laity, 1580-1700 | Gillespie, Raymond, 1955-2024 | Article in Book | | 1995 |
| The religion of the first duke of Ormond | Gillespie, Raymond, 1955-2024 | Article in Book | | 2000 |
| The religion of the Protestant laity in early modern Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 2002 |
| The religious awakening of 1858-60 in Great Britain and Ireland | Bussey, Oscar | Thesis | | 1947 |
| The religious condition of Ireland, 1770-1850 | Yates, Nigel | Monograph or Collective Volume | Oxford University Press | 2006 |
| The religious development of Daniel O'Connell, I : from Deist to Roman Catholic | Guilfoyle, James E. | Article in Journal | | 1998 |
| The religious development of Daniel O'Connell, II : the making of a devotional Catholic | Guilfoyle, James E. | Article in Journal | | 1998 |
| The religious life of the Catholic laity of Dublin, 1920-40 | Hartigan, Maurice | Article in Book | | 2000 |
| The religious significance of the sén 7 soladh in Altram Tige Dá Medar | Hambro, Cathinka Dahl | Article in Book | | 2019 |
| The resilience of Catholic devotionalism | Keogh, Dermot | Article in Journal | | 2005 |
| The retreat movement in Ireland | Brown, Stephen J. | Article in Journal | | 1956 |
| The Rice monument in Waterford cathedral | Rae, E. C. | Article in Journal | | 1970 |
| The rite of church dedication in early medieval Ireland and the dedication scheme in the Angers manuscript 477 | Barbet-Massin, Dominique | Article in Journal | | 2016 |
| The road home : reflections on my life | Kennedy, Stanislaus | Monograph or Collective Volume | Transworld Ireland | 2011 |
| The road to A.D. 2000 | Knox, R. Buick | Article in Book | | 2002 |
| The role of religion in Ireland : the historical dimension | Mac Curtain, Margaret | Article in Book | | 2019 |
| The role of the laity in the parishes of Armagh inter Anglicos, 1518-53 | Jefferies, Henry A. | Article in Journal | | 1998 |
| The role of the regular canons of St Augustine in the formation of the parochial network in Ireland | Empey, Adrian | Article in Book | | 2019 |
| The roles and representations of women in religious change and conflict in Leinster and south-east Munster, c.1560-c.1641 | McShane, Bronagh Ann | Thesis | | 2015 |
| The roles and representations of women in religious change and conflict in Leinster and south-east Munster, c.1560-c.1641 | McShane, Bronagh Ann | Thesis | | 2015 |
| The sacred in the secular : religious change in Catholic Ireland, 1500-1700 : the fifth annual lecture in Catholic studies, sponsored by the Edmundite trust fund for Catholic Studies and Ministry at St. Michael's College, 21 April 1993 | Gillespie, Raymond, 1955-2024 | Monograph or Collective Volume | St Michael's College | 1993 |
| The sacred landscape of Ireland | Pollard, Penelope Ann | Thesis | | |
| The saint and the sacred centre : the early medieval pilgrimage landscape of Inishmurray | Ó Carragáin, Tomás | Article in Book | | 2009 |
| The saints and martyrs of Ireland | Montagne, H. Patrick | Monograph or Collective Volume | Smythe | 1981 |
| The saints of Kerry in the early middle ages | Johnston, Elva | Article in Book | | 2020 |
| The Scientific legacy of George Gabriel Stokes | Fowler, Andrew | Article in Book | | 2019 |
| The second spell in the Stowe Missal | Borsje, Jacqueline | Article in Book | | 2013 |
| The settlement of the Augustinian canons of Llanthony Prima and Secunda in Ireland, 1172–1541 | Hogan, Arlene | Article in Book | | 2019 |
| The shaping of a lay community in the Church of Ireland, 1558-1640 | Lennon, Colm | Article in Book | | 2002 |
| The shaping of Ulster Presbyterian belief and practice, 1770-1840 | Holmes, Andrew R., 1977- | Monograph or Collective Volume | Oxford University Press | 2006 |
| The shattered images : archaeological evidence for painted and stained glass in medieval Ireland | Moran, Josephine | Article in Book | | 2006 |
| The significance of the Liturgia Horarium in the Nauigatio Sancti Brendani in its Modelling of a sacramental Christian life | Rumsey, Patricia M. | Article in Book | | 2017 |
| The Skellig story : ancient monastic outpost | Lavelle, Des | Monograph or Collective Volume | O'Brien Press | 1993 |
| The social teaching of the Catholic Church : to what purpose? to what effect? | O'Shea, Eamon | Article in Journal | | 1990 |
| The Society of St Vincent de Paul ‘stood between hundreds of families and complete destitution | Kehoe, Elisabeth | Article in Book | Dublin City Council | 2024 |
| The society of the Sacred Heart in Armagh, 1851-9 | Kilroy, Phil | Article in Journal | | 1979 |
| The Society of the Sacred Heart in nineteenth-century France, 1800-1865 | Kilroy, Phil | Monograph or Collective Volume | Cork University Press | 2012 |
| The sodality of Our Lady in Ireland in the nineteenth century | O'Conor, Charles | Article in Journal | | 1945 |
| The spirituality of John Henry Newman | Norris, Thomas | Article in Journal | | 2002 |
| The spirituality of our Irish ancestors | Ní Thiarnaigh, Éilís | Article in Journal | | 2012 |
| The spirituality of the Céili Dé | Ó Fiannachta, Pádraig | Article in Book | | 1981 |
| The splendid cause : the Catholic action movement in Ireland in the twentieth century | Curtis, Maurice | Monograph or Collective Volume | Original Writing | 2008 |
| The St Gall incantation against headache | Best, R. I. (Richard Irvine), 1872-1959 | Article in Journal | | 1916 |
| The state of religion in the province of Leinster during the 17th century, illustrated by extracts from synodical decrees | Comerford, M., P.P. | Article in Journal | | 1879 |
| The Stations | Collins, Kit | Article in Journal | | 2007 |
| The Stations | Cadogan, Anne | Article in Journal | | 2001 |
| The stations, part 1 | Quain, James T. | Article in Journal | | 1990 |
| The stations, part 2 | Quain, James T. | Article in Journal | | 1991 |
| The status of Munster churches | Flahive, Joseph J. | Article in Book | | 2015 |
| The steeple, bells and clocks of Shankill parish | Irwin, John | Monograph or Collective Volume | Lurgan Society of Changeringers | 1959 |
| The Story of a parish ... written to celebrate the centenary year of the Parish Church of Saint Stephen, Millfield (originally known as Saint Stephen's Free Church) | Rodgers, Terence, Rev. | Monograph or Collective Volume | [St Stephen's Parish] | 1969 |
| The story of a school : Scoil Naisiunta an Choinigeir : The Burrow National School, Sutton, Dublin | Blennerhassett, Frank | Monograph or Collective Volume | J. J. Lalor Ltd. | 1982 |
| The story of Ardglass | Napier, James McCabe | Monograph or Collective Volume | [St Nicholas' parish, Ardglass] | 1966 |
| The story of Crinkin 1840-1940 St. James's Church, Bray | Bland, F.E. | Monograph or Collective Volume | The Dargle Press | 1940 |
| The story of Crinkin 1840-1990 St. James's Church, Bray | Bland, F.E. | Monograph or Collective Volume | St. James Bray | 1990 |
| The story of Holy Trinity Church, Belfast, 1843 - 1941 - 1956 | Reid, S. H. | Monograph or Collective Volume | Howard Publications | 1956 |
| The Story of the Parish Church of Saint Mary, Belfast : written to celebrate the centenary of the consecration in November 1968 | Byers, Robert | Monograph or Collective Volume | [St Mary's Parish] | 1968 |
| The story of the Presentation Sisters, Scoil Chroí Naofa and Presentation College, Athenry (1908-2008) | | Monograph or Collective Volume | Presentation Sisters | 2009 |
| The story of the united parishes of Glenavy, Camlin and Tullyrusk together with short accounts of the history of the different denominations in the Union | Watson, Charles | Monograph or Collective Volume | M'Caw, Stevenson & Orr [Printers] | 1892 |
| The Story of Trory | McNutt, J. A. M. | Monograph or Collective Volume | Graham & Sons | 1978 |
| The Stowe Missal : its provenance and recent history | Fitzpatrick, Siobhán | Article in Book | | 2007 |
| The Supernatural, Magic, and Religion | Sneddon, Andrew | Article in Book | Oxford University Press | 2024 |
| The support of the Catholic clergy in Ireland, 1750-1850 | Murphy, John A. | Article in Book | | 1965 |
| The survival of the Catholic Church in Ulster in the era of the flight of the earls and the Ulster plantation | Ó hAnnracháin, Tadhg | Article in Book | | 2010 |
| The templars, the witch and the wild Irish: vengeance and heresy in Medieval Ireland | Callan, Maeve Brigid | Monograph or Collective Volume | Four Courts Press | 2015 |
| The Templemore Miracles: Jimmy Walsh, Ceasefires and Moving Statues | Reynolds, John | Monograph or Collective Volume | The History Press | 2019 |
| The theology and liturgy of conversion from Catholicism to Anglicanism | Power, Thomas P. | Article in Book | | 2005 |
| The thread that could not be broken | Kingston, Rosari | Article in Journal | | 2009 |
| The Timoleague chalice | Kruger, Chuck | Article in Journal | | 2009 |
| The topography of St Mary's Cistercian abbey and precinct, Dublin | Stout, Geraldine | Article in Book | | 2012 |
| The Tridentine evolution of modern Irish Catholicism, 1563-1962 : a re-examination of the 'devotional revolution' thesis | McGrath, Thomas | Article in Book | | 1991 |
| The Tridentine evolution of modern Irish Catholocism, 1563-1962 : a re-examination of the 'devotional revolution' thesis | McGrath, Thomas G. | Article in Journal | | 1991 |
| The Tuam Crosses: A Legacy of Fragmentation and Dislocation | Dolan, Ana | Article in Book | Edinburgh University Press | 2025 |
| The Turas (Sts Peter & Paul) | Carr, Kathleen | Article in Journal | | 1994 |
| The Ulster Revival of 1859 : causes, controversies and consequences | Holmes, Andrew R., 1977- | Article in Journal | | 2012 |
| The ultramontane spirituality of Paul Cullen | Rafferty, Oliver P. | Article in Book | | 2011 |
| The undoing of the friars of Ireland : A Study of the Novitiate Question in the eighteenth Century | Fenning, Hugh | Monograph or Collective Volume | NA | 1972 |
| The use of the Eucharistic Chrismal in Pre-Norman Ireland | O’Donoghue, Neil Xavier | Article in Book | | 2017 |
| The Vicars Choral of Cashel Cathedral : address by the Dean of Cashel at the Festival Service of the Friends of Cashel | Dean of Cashel | Monograph or Collective Volume | The Friends of Cashel | 1949 |
| The view from Breóghan's Tower | Cunningham, Bernadette | Article in Book | | 2015 |
| The Vikings in the Isle of Man | Wilson, David M. | Monograph or Collective Volume | Aarhus University Press | 2008 |
| The Village Stations in the 1920s | Grehan, Margaret | Article in Journal | | 2000 |
| The Vita Apostolica and the origin of the Augustinian canons and canonesses in medieval Ireland | Bhreathnach, Edel | Article in Book | | 2019 |
| The voice of the Virgin : Irish visionaries and their testimony | Eipper, Chris | Article in Book | | 1996 |
| The well of the holy women : some St Columba traditions in the west of Ireland | Szövérffy, Joseph | Article in Journal | | 1955 |
| The Wexford Catholic Young Men's Society, 1855-2008 | O'Rourke, Michael | Article in Journal | | 2010 |
| The wonder of wells | Schorman, Sonia | Article in Journal | | 2005 |
| The writing of religious women's history : Madeleine Sophie Barat (1779-1865) | Kilroy, Phil | Article in Book | | 2005 |
| Theology and ethics : the twentieth century | | Article in Book | | 2002 |
| Therapeutic landscapes in Cavan | Foley, Ronan | Article in Book | | 2014 |
| These seventy years : a history of All Saints' Parish, Belfast | Leathem, William S. | Monograph or Collective Volume | News-Letter [Printer] | 1959 |
| Thesis abstract : Catholicism in the Province of Armagh, 1603-1641 | Mac Cuarta, Brian | Article in Journal | | 2005 |
| Thirty centuries in south-east Antrim : the parish of Coole or Carnmoney | Clarke, H. J. St. J., Rev. | Monograph or Collective Volume | The Quota Press | 1938 |
| Three problems in the Vision of Tundal | Marshall, J. C. D. | Article in Journal | | 1975 |
| Three-quarters of a century old : Harold's Cross Church | Anonymous | Monograph or Collective Volume | Wood Printing Works [printer] | c. 1911 |
| Ties that bind : ethnic and religious factors in the marriage choices of Irish-American Catholics on the Dakota frontier | Funchion, Michael F. | Article in Journal | | 2010 |
| Tigernán Ua Ruairc and a Twelfth-Century Royal Grant in the Book of Kells | Casey, Denis | Monograph or Collective Volume | Four Courts | 2020 |
| To Hell or to Purgatory? Irish folk religion and post-Tridentine counter-reformation Catholic teachings | O'Connor, Anne | Article in Journal | | 2012 |
| To the Congo with some rosary beads | Swan, Colum | Article in Book | | 2005 |
| To this you belong | Fair, J. A. | Monograph or Collective Volume | Northern Whig [Printer] | 1979 |
| Tobar Moling and Templeogue | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1943 |
| Tóchar : walking along Ireland's ancient pilgrim paths | MacDonald, Darach | Monograph or Collective Volume | New Island | 2013 |
| Toland on faith and reason | Clarke, Desmond | Article in Book | | 1997 |
| Toleration and religious identity : the Edict of Nantes and its implications in France, Britain and Ireland | | Monograph or Collective Volume | Four Courts | 2003 |
| Towards a Catholic history for a Catholic nation : the contribution of Irish émigré scholars in Europe, c.1580-c.1630 | Lyons, Mary Ann | Article in Book | | 2017 |
| Towards a history of devotion to Mary in Ireland, 1100-1600 | O'Dwyer, Peter | Monograph or Collective Volume | Carmelite Publications | 1979 |
| Towards a history of Irish spirituality | O'Dwyer, Peter | Monograph or Collective Volume | Columba | 1995 |
| Towards a typology of European narrative charms in Irish oral tradition | Hillers, Barbara | Article in Book | | 2019 |
| Tradition and enlightenment : conversion and assurance of salvation in Ulster Presbyterianism, 1700-1859 | Holmes, Andrew R., 1977- | Article in Book | | 2005 |
| Traditional Irish spirituality in modern times | Ó Laoghaire, Diarmuid, SJ | Article in Book | | 1981 |
| Traditional religion in sixteenth-century Gaelic Ireland | Gillespie, Raymond, 1955-2024 | Article in Book | | 2014 |
| Translating the Bible into Irish, 1565-1850 | Ó Fearghail, Fearghus | Article in Book | | 2018 |
| Trapping witches in Wicklow | Kelly, Eamonn P. | Article in Journal | | 2012 |
| Travellers: Journey's end; customs around death | O'Brien, Ann | Article in Book | | 2000 |
| Travellers: Spirituality, the faith journey of a people | McDonagh, Cathleen | Article in Book | | 2000 |
| Travelling, journeying and pilgrimage in early Ireland | Grogan, Eoin | Article in Book | | 2018 |
| Treasures of Irish Christianity, volume I, people and places, images and texts | | Monograph or Collective Volume | Veritas | 2013 |
| Treasures of Irish Christianity, volume II: a people of the word | | Monograph or Collective Volume | Veritas | 2013 |
| Treasures of Irish Christianity, volume III : to the ends of the earth | | Monograph or Collective Volume | Veritas | 2015 |
| Treasures old and new within one cover | Clarke, Richard | Article in Book | | 2012 |
| Trí eachtraí as beatha bhéil Cholaim Chille | Ó Riain, Pádraig | Article in Book | | 1985 |
| Trias Thaumaturga | Colgan, John | Monograph or Collective Volume | De Búrca | 1997 |
| Trinity College Mission in Belfast (founded 1912): a short story of its origin its growth its prospects | Barton, A. W.,Gwynn, R. M.,Hannon, GordonHayes, E. C.,Manning, W. R. F., | Monograph or Collective Volume | [Adams] | 1920 |
| Trinity Presbyterian Church, Bailieborough, the first 125 years : 1887-2012 | McKeague, Leslie | Monograph or Collective Volume | Bailie Publications | 2013 |
| Tullow church extension | Keogh, John | Article in Journal | | 1988 |
| Tús na heagna omhan Dé : penance and retribution in a poem by Aonghus Fionn Ó Dálaigh | Nic Cárthaigh, Emma | Article in Book | | 2015 |
| Twentieth-Century Scottish Catholicism: Poverty, Affluence, Freedom | Gilfillan, Paul | Article in Book | Oxford University Press | 2023 |
| Two descriptions of Waterford in the 1680s | | Article in Journal | | 1987 |
| Two island hermitages in the Atlantic : Rathlin O'Birne, Donegal, and Caher Island, Mayo | Herity, Michael | Article in Journal | | 1995 |
| Two Lives of Saint Brigid | | Monograph or Collective Volume | Four Courts Press | 2023 |
| Two studies in integrity : Gerald Griffin and the Rev. Francis Mahony (Father Prout) | Mannin, Ethel | Monograph or Collective Volume | Jarrolds | 1954 |
| Two thousand years of Christianity and Ireland : lectures delivered in Christ Church Cathedral Dublin, 2001-2002 | | Monograph or Collective Volume | Columba | 2006 |
| Ulster Presbyterian belief and practice, 1770-1840 | Holmes, Andrew Robert | Thesis | | 2002 |
| Ulster Presbyterian immigration to America | Doan, James E. | Article in Book | | 2008 |
| Ulster Presbyterianism as a Popular Religious Culture, 1750-1860 | Holmes, Andrew R., 1977- | Article in Journal | | 2006 |
| Ulster Presbyterians in the Atlantic world : religion, politics and identity | | Monograph or Collective Volume | Four Courts | 2006 |
| Ulster transplanted : Irish Protestants, everyday life and constructions of identity in late Victorian Toronto | Jenkins, William | Article in Book | | 2008 |
| Ulster-American religion : essays in the history of a cultural connection | Livingstone, David N.Wells, Ronald A. | Monograph or Collective Volume | University of Notre Dame Press | 1999 |
| Ulsterheart : an ancient Irish habitation | Ingram, Brett | Monograph or Collective Volume | All-Ireland Heritage | 1989 |
| Umaum-an-affrin | M., S. | Article in Journal | | 1997 |
| Una lettera di Luke Wadding ad Ilarione Rancati sull'Immacolata Concezione | | Article in Journal | | 2018 |
| Unaware | Ward, Owen | Article in Journal | | 2016 |
| Uncommon prayer : the devotional life of the second earl of Cork in Cromwellian Ireland | Little, Patrick | Article in Book | Four Courts Press | 2025 |
| Unending worship : a history of Saint Iberius Church, Wexford | Kloss, NaomiRuddock, Norman, Rev. | Monograph or Collective Volume | Impression Print (printer) | 1997 |
| Unfinished pilgrimage : the story of Belfast Cathedral | Young, John A. | Monograph or Collective Volume | Friends of Belfast Cathedral | 1945 |
| Unfurling words of indulgence | Moss, Rachel | Article in Book | | 2013 |
| Unionist identity and party fortunes since the Good Friday Agreement | Southern, Neil | Article in Book | | 2008 |
| Unity in division : a history of Christianity in Kilcock and Newtown parish 400-2000 | | Monograph or Collective Volume | Kilcock Publication Millennium Committee | 1999 |
| Urraim do na naoimh ghaelacha sa liotúrga san Eoraip sna Meánaoiseanna | Buckley, Ann | Article in Journal | | 2006 |
| Using the Irish language to further the aims of two bible societies: an analysis of Irish-language bibles in the Russell Library, Maynooth | McCormack, Barbara | Article in Book | | 2017 |
| Varieties of literacy in nineteenth-century Ireland : gender, religion and language | Ó Cíosáin, Niall | Article in Book | | 2019 |
| Varieties of supernatural contact in the Life of Adomnán | Carey, John | Article in Book | | 2001 |
| Vernacular Catholic Literature | Mac Craith, Mícheál : January-McCann, James : Stiùbhart, Domhnall Uilleam | Article in Book | Oxford University Press | 2023 |
| Victorine canons in medieval Ireland | Flanagan, Marie Therese | Article in Book | | 2019 |
| Vikings : life and legend | | Monograph or Collective Volume | The British Museum Press | 2014 |
| Vincent de Paul, the Lazarist Mission, and French Catholic Reform | Forrestal, Alison | Monograph or Collective Volume | Oxford University Press | 2017 |
| Vincentian Mission in Strokestown 12th May - 9th June 1867. First Mission in Strokestown | Anonymous | Article in Journal | | 1998 |
| Virgins and mothers : feminine ideals and female roles in the early Irish church | Lerner, Elizabeth A. | Article in Journal | | 1994 |
| Visible differences : the 1859 revival and sectarianism in Belfast | Doyle, Mark | Article in Book | | 2008 |
| Visions of the afterlife in the Liber Exemplorum | Shanahan, Anthony | Article in Book | | 2016 |
| Visual marianism and national identity in Ireland, 1920-1960 | Turpin, John | Article in Book | | 2003 |
| Visual theology within a liturgical context : the visual programmes of the Irish high crosses | Ó Carragáin, Éamonn | Article in Book | | 2010 |
| Was Saint Wendel from Delvin? | Ó hAnnracháin, Eoghan | Article in Journal | | 2008 |
| Was Waterford unique? | Dickson, David | Article in Book | | 2026 |
| Waterford's Anglicans: religion and politics, 1819-1872 | Broderick, Eugene | Thesis | | 2000 |
| Weapons of redemption : piety, poetry and the instruments of the Passion in late medieval Ireland | Ryan, Salvador | Article in Book | | 2007 |
| Weather lore: signs and proverbs | Daly, Eugene | Article in Journal | | 2018 |
| Were early Irish church establishments under lay control? | Holland, Martin | Article in Book | | 2006 |
| Westmeath history and society : interdisciplinary essays on the history of an Irish county | | Monograph or Collective Volume | Geography Publications | 2022 |
| What comes 'from above' must be born 'from below' : the evidence from Ballyferriter parish, County Kerry | Leahy, Brendan | Article in Book | | 2013 |
| What was the 'assembly of the "hand-clapping"' in "AU" 772? | Bergholm, Alexandra | Article in Journal | | 2013 |
| Where three streams meet : Celtic spirituality | Ó Duinn, Sean | Monograph or Collective Volume | Columba | 2000 |
| Who were the nuns in early modern Ireland? | McShane, Bronagh Ann | Article in Book | | 2023 |
| Why 1215? : the making of the sacraments of confession | Gibbons, Elizabeth | Article in Book | NA | 2006 |
| Why St Andrew? Why not St Columba as Patron Saint of Scotland? | Hair, Greta-Mary | Article in Book | | 2017 |
| Wicklow and the Eucharistic Congress 1932 | Finlay, John | Article in Journal | | 2012 |
| William Dool Killen (1806-1902) : a Presbyterian perspective on Irish ecclesiastical history | Kirkpatrick, Laurence | Article in Book | | 2017 |
| William McIlwaine and the 1859 Revival in Ulster : a study of Anglican and evangelical identities | Ritchie, Daniel | Article in Journal | | 2014 |
| Willowfield parish church, Belfast, 1872-1972 | Taylor, A. R. | Monograph or Collective Volume | [A.R. Taylor] | 1972 |
| Windows on late medieval devotional practice : Máire Ní Mháille's 'Book of piety' (1513) and the world behind the texts | Ryan, Salvador | Article in Book | | 2006 |
| Witness in the city: a history of St. Thomas' Parish Church, Belfast | Douglas, Carol,Douglas, Colin,Douglas, Mervyn | Monograph or Collective Volume | [St. Thomas' Parish Church] | 2002 |
| Women and Catholic life in Dublin, 1766-1852 | Enright, Séamus | Article in Book | | 2000 |
| Women and Jesuit ministry in Ireland, c.1600–c.1670 | Lyons, Mary Ann | Article in Book | | 2022 |
| Women in a Celtic church : Ireland 450-1150 | Harrington, Christina | Monograph or Collective Volume | Oxford University Press | 2002 |
| Word and image : diverging attitudes | Mac Craith, Mícheál | Article in Book | | 2013 |
| Words of power | Stifter, David | Article in Book | | 2013 |
| Workshop of empire : the nineteenth century | Hutchison, I. G. C. | Article in Book | | 2005 |
| Writing about Eucharistic belief and practice among historians of Protestantism in seventeenth-century Ireland | Monaghan, Evie | Article in Book | | 2017 |
| Writing medieval Irish religious history in the nineteenth century | Boyle, Elizabeth | Article in Book | | 2017 |
| `Thus crucifixes became the norm': System, affect, and display in Post-Famine Catholicism | Godson, Lisa | Article in Book | | 2018 |
| « Papistes » ou « catholiques » ? « Papisme » ou « catholicité »?, Terminologie confessionnelle et culture politique en Irlande et aux États-Unis à la fin du 18e et au début du 19e siècle | Burke, Martin J. | Article in Journal | | 2002 |
| ‘Ag so scéal uafásach eile...': scéalaíocht na seanmóire. | Ó Dúshláine, Tadhg | Article in Book | | 2000 |
| ‘Befitting Emblems of Adversity’: Temporality and disruption in Irish Civil War poetry
| McDaid, Ailbhe | Article in Book | Cork University Press | 2024 |
| ‘Cahill’s blood’: Mr Cahill Makes the Cure | Nuttall, Deirdre | Article in Book | | 2019 |
| ‘The best teachers in the world’: Jesuit schooling in Ireland, 1660–90 | Foerster, Martin | Article in Book | | 2022 |
| ‘The cure for bleeding’: Charms and other cures for blood-stopping in Irish tradition | Ní Fhloinn, Bairbre | Article in Book | | 2019 |
| ‘The Pale at prayer’: lived religious experience in Anglo-Norman: Dublin’s two cathedrals | Sullivan, John William | Article in Book | | 2020 |
| ‘Une maison de refuge’: the Irish Jesuit college in Poitiers, 1674–1762 | Chambers, Liam | Article in Book | | 2022 |
| ‘We’ll talk now about charms’: Knowledge as folklore and folklore as knowledge | Ó Cadhla, Stiofán | Article in Book | | 2019 |
| “Language which will move their hearts” : speaking power, performance, and the lay-clerical relationship in modern Catholic Ireland | Delay, Cara | Article in Journal | | 2014 |
| “No milkless cow”: the Cross of Christ in medieval Irish literature | Ryan, Salvador | Article in Book | | 2012 |
| “Reaping a rich harvest of humanity”: images of redemption in Irish bardic religious poetry. | Ryan, Salvador | Article in Book | | 2011 |
| “Well, we didn’t pass a bit o’ remarks on it. It was second nature to us” : the rituals of fasting in Ireland before Vatican II | Deleuze, Marjorie | Article in Journal | | 2018 |