| "To be named is to exist" : the instructive case of Achadh Bolg (Aghabulloge) | Ó Riain, Pádraig, 1939- | Article in Book | | 1993 |
| A dictionary of Irish saints | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Four Courts Press | 2011 |
| A dictionary of Irish saints : second edition | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Four Courts Press | 2025 |
| A misunderstood annal : a hitherto unnoticed Cáin | Ó Riain, Pádraig, 1939- | Article in Journal | | 1990 |
| A study of the Irish legend of the wild man | Ó Riain, Pádraig, 1939- | Article in Book | | 2014 |
| A supplement to a dictionary of Irish saints containing additions and corrections | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Four Courts Press | 2022 |
| Addendum to 'Peritia' 32 (2021) 181-96' | Ó Riain, Pádraig, 1939- | Article in Journal | | 2022 |
| An Vita Cadroe, an Leabhar Gabhála agus Corcaigh | Ó Riain, Pádraig, 1939- | Article in Journal | | 2008 |
| Another Cork charter : the life of Saint Finbarr | Ó Riain, Pádraig, 1939- | Article in Journal | | 1985 |
| Aonghas of Tallaght | Ó Riain, Pádraig, 1939- | Article in Book | | 2012 |
| Barra Naofa : léamh nua ar a chúlra Connachtach | Ó Riain, Pádraig, 1939- | Article in Journal | | 2005 |
| Barra Naofa : tuairisc an Irisleabhair Air | Ó Riain, Pádraig, 1939- | Article in Journal | | 1991 |
| Battle-site and territorial extent in early Ireland | Ó Riain, Pádraig, 1939- | Article in Journal | | 1974 |
| Beathaí agus beathaí béil | Ó Riain, Pádraig, 1939- | Article in Book | | 1982 |
| Boetius McEgan bishop and martyr | Ó Riain, Pádraig, 1939- | Article in Journal | | 1986 |
| Boundary association in early Irish society | Ó Riain, Pádraig, 1939- | Article in Journal | | 1972 |
| Brollach/Foreword. An Dr Diarmuid Ó Murchadha | Murray, KevinÓ Riain, Pádraig, 1939- | Article in Journal | University College Cork: Department of Archaeology | 2008 |
| Caillín of Fenagh | Ó Riain, Pádraig, 1939- | Article in Book | | 2016 |
| Cainnech alias Colum Cille, patron of Ossory | Ó Riain, Pádraig, 1939- | Article in Book | | 1983 |
| Clár na lámhscríbhinní Gaeilge sa Bhreatain Bhig | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Cló Bhréanainn | 1968 |
| Codex Salmanticensis : a provenance inter Anglos or inter Hibernos? | Ó Riain, Pádraig, 1939- | Article in Book | | 1998 |
| Connradh na Gaeilge i nDutha Galla, 1906-19 | Ó Riain, Pádraig, 1939- | Article in Journal | | 1980 |
| Conservation in the vocabulary of the early Irish church | Ó Riain, Pádraig, 1939- | Article in Book | | 1989 |
| Croagh Patrick’s early associations, Patrician and Non-Patrician | Ó Riain, Pádraig, 1939- | Article in Book | | 2014 |
| Dating the Stowe missal shrine | Ó Riain, Pádraig, 1939- | Article in Journal | | 1991 |
| Deascán lámhscríbhinní : a manuscript miscellany | Ó Riain, Pádraig, 1939- | Article in Journal | | 2003 |
| Dublin's oldest book? a list of saints 'made in Germany' | Ó Riain, Pádraig, 1939- | Article in Book | | 2004 |
| Duhallow's three sister saints | Ó Riain, Pádraig, 1939- | Article in Journal | | 2022 |
| Early Irish literature | Ó Riain, Pádraig, 1939- | Article in Book | | 1992 |
| Fachtna of Rosscarbery | Ó Riain, Pádraig, 1939- | Article in Journal | | 1999 |
| Feastdays of the saints : a history of Irish martyrologies | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Societe des Bollandistes | 2006 |
| Finnian or Winniau? | Ó Riain, Pádraig, 1939- | Article in Book | | 1984 |
| Finnio and Winniau : a return to the subject | Ó Riain, Pádraig, 1939- | Article in Book | | 1999 |
| Fíonán of Iveragh | Ó Riain, Pádraig, 1939- | Article in Book | | 2009 |
| Fionán, founder-patron of Skellig Michael? | Ó Riain, Pádraig, 1939- | Article in Book | | 2022 |
| Four Irish martyrologies : Drummond, Turin, Cashel, York | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Boydell | 2002 |
| Four Offaly saints: the lives of Ciarán of Clonmacnoise, Ciarán of Seir, Colmán of Lynally and Fionán of Kinnitty | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Four Courts | 2018 |
| Four Tipperary saints : the lives of Colum of Terryglass, Crónán of Roscrea, Mochaomhóg of Leigh and Ruadhán of Lorrha | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Four Courts | 2014 |
| Here and there in Duhallow | Ó Riain, Pádraig, 1939- | Article in Journal | | 1980 |
| In salute of Nollaig Ó Muraíle's edition of 'Leabhar Mór na nGenealach' | Ó Riain, Pádraig, 1939- | Article in Journal | | 2009 |
| Irish saints in a Regensburg litany | Ó Riain, Pádraig, 1939-Ó Riain-Raedel, Dagmar | Article in Book | | 2015 |
| Irish saints' cults and ecclesiastical families | Ó Riain, Pádraig, 1939- | Article in Book | | 2002 |
| Is leor nod don eolach | Ó Riain, Pádraig, 1939- | Article in Book | | 2013 |
| Johann Kaspar Zeuss und Irland | Ó Riain, Pádraig, 1939- | Article in Journal | | 2007 |
| Les Vies de Saint Fursy : les sources Irlandaises | Ó Riain, Pádraig, 1939- | Article in Journal | | 1986 |
| Local saints in North Tipperary dedications | Ó Riain, Pádraig, 1939- | Article in Book | | 2017 |
| Longford priories and their manuscripts : All Saints and Abbeyderg | Ó Riain, Pádraig, 1939- | Article in Book | | 2010 |
| Miscellanea. The Bann Bell-shrine crest : a note on its provenance and inspiration | Murray, GriffinÓ Riain, Pádraig, 1939- | Article in Journal | | 2006 |
| Northern influences on "A Dictionary of Irish Saints" | Ó Riain, Pádraig, 1939- | Article in Journal | | 2012 |
| Pagan example and Christian practice : a reconsideration | Ó Riain, Pádraig, 1939- | Article in Book | | 1995 |
| Placenames : fascinating and revealing | Ó Riain, Pádraig, 1939- | Article in Journal | | 1989 |
| R. W. Flower agus lámhscríbhinní Gaeilge leabharlann na Breataine | Ó Riain, Pádraig, 1939- | Article in Book | | 1998 |
| Saints in the catalogue of bishops of the lost 'Register of Clogher' | Ó Riain, Pádraig, 1939- | Article in Journal | | 1992 |
| Saints' lives | Ó Riain, Pádraig, 1939- | Article in Book | | 2007 |
| Samson alias San (c) tan? | Ó Riain, Pádraig, 1939- | Article in Journal | | 1984 |
| Sanctity and politics in Connacht c.1100 : the case of St Fursa | Ó Riain, Pádraig, 1939- | Article in Journal | | 1989 |
| Saothar suaithinseach de chuid Eoghain Uí Chomhraí. | Ó Riain, Pádraig, 1939- | Article in Book | | 1995 |
| St Abban : the genesis of an Irish saint's life | Ó Riain, Pádraig, 1939- | Article in Book | | 1986 |
| St. Finbarr and early Christian settlement | Ó Riain, Pádraig, 1939- | Article in Book | | 2005 |
| The "crech ríg" or "regal prey" | Ó Riain, Pádraig, 1939- | Article in Journal | | 1973 |
| The 'Crech Ríg' or 'Regal Prey' | Ó Riain, Pádraig, 1939- | Article in Journal | | 1973 |
| The Book of Glendalough, or Rawlinson B502 | Ó Riain, Pádraig, 1939- | Article in Journal | | 1981 |
| The Book of Glendalough: a continuing Investigation | Ó Riain, Pádraig, 1939- | Article in Journal | | 2008 |
| The calendar and martyrology of Christ Church cathedral Dublin | Ó Riain, Pádraig, 1939- | Article in Book | | 2006 |
| The Catalogus praecipuorum sanctorum Hiberniae, sixty years on | Ó Riain, Pádraig, 1939- | Article in Book | | 2000 |
| The composition of the Irish section of the calendar of saints | Ó Riain, Pádraig, 1939- | Article in Journal | | 1977 |
| The early ninth-century Karlsruhe Irish Calendar of Saints | Ó Riain, Pádraig, 1939- | Article in Journal | | 2021 |
| The Irish element in Welsh hagiographical tradition | Ó Riain, Pádraig, 1939- | Article in Book | | 1981 |
| The lives of Kevin (Caoimhghin) of Glendalough | Ó Riain, Pádraig, 1939- | Article in Book | | 2011 |
| The lives of Saint Ciarán, patron of the diocese of Ossory | Ó Riain, Pádraig, 1939- | Article in Journal | | 2008 |
| The Louvain achievement II : hagiography | Ó Riain, Pádraig, 1939- | Article in Book | | 2009 |
| The making of a saint : Finbarr of Cork, 600-1200 | Ó Riain, Pádraig, 1939- | Monograph or Collective Volume | Irish Texts Society | 1997 |
| The martyrology of Óengus : the transmission of the text | Ó Riain, Pádraig, 1939- | Article in Journal | | 2001 |
| The materials and provenance of 'Buile Shuibhne' | Ó Riain, Pádraig, 1939- | Article in Journal | | 1974 |
| The medieval story of Saint Cronán of Roscrea | Ó Riain, Pádraig, 1939- | Article in Book | | 2012 |
| The notes of the Book of Armagh: a ninth-century witness to North Munster affairs? | Ó Riain, Pádraig, 1939- | Article in Journal | | 2014 |
| The O'Donohue lives of the Salamacan codex: the earliest collection of Irish saints' lives? | Ó Riain, Pádraig, 1939- | Article in Book | | 2013 |
| The Prosperous crozier and its inscription | Murray, GriffinÓ Riain, Pádraig, 1939- | Article in Journal | | 2017 |
| The psalter of Cashel : a provisional list of contents | Ó Riain, Pádraig, 1939- | Article in Journal | | 1989 |
| The regular canons and Irish hagiography | Ó Riain, Pádraig, 1939- | Article in Book | | 2019 |
| The saints and their amanuenses : early models and later issues | Ó Riain, Pádraig, 1939- | Article in Book | | 1989 |
| The shrine of the Stowe missal, redated | Ó Riain, Pádraig, 1939- | Article in Journal | | 1991 |
| The Stowe missal | Ó Riain, Pádraig, 1939- | Article in Book | | 2009 |
| The Tallaght martyrologies, redated | Ó Riain, Pádraig, 1939- | Article in Journal | | 1990 |
| The very Rev. James Maurice Carey (1926-2001). President of the Society (1979-80) | Ó Riain, Pádraig, 1939- | Article in Journal | | 2001 |
| Towards a methodology in early Irish hagiography | Ó Riain, Pádraig, 1939- | Article in Journal | | 1982 |
| Traces of Lug in early Irish hagiographical tradition | Ó Riain, Pádraig, 1939- | Article in Journal | | 1977 |
| Trí eachtraí as beatha bhéil Cholaim Chille | Ó Riain, Pádraig, 1939- | Article in Book | | 1985 |
| Tullamore and surrounding parishes in Dictionary of Irish Saints | Ó Riain, Pádraig, 1939- | Article in Journal | | 2013 |
| Two legends of the Uí Máille | Ó Riain, Pádraig, 1939- | Article in Journal | | 1971 |
| Two Welsh visitors to Kerry in 1852 | Ó Riain, Pádraig, 1939- | Article in Journal | | 1971 |
| When and why was Cothraige first equated with Patricius? | Ó Riain, Pádraig, 1939- | Article in Journal | | 1997 |
| William Reeves, historian, in the shadow of the second reformation | Ó Riain, Pádraig, 1939- | Article in Journal | | 2018 |