| '...no prototypes or parallels whatever in the continental practice or vocabulary' : ceoltóirí na hÉireann sa 19ú haois agus an comhthéacs Eorpach | Devine, Patrick F. | Article in Book | An Sagart | 2010 |
| Amhráin Chlainne Gaedheal | Ó hÚiginn, Ruairí | Article in Book | | 2010 |
| An nua-Rúraíocht | Ó hUiginn, Ruairí | Article in Book | Cló Iar-Chonnachta | 2009 |
| Anders Ahlqvist !945-2018) | Ó hUiginn, Ruairí | Article in Journal | | 2018 |
| Annals, histories and stories: some thirteenth-century entries in the Annals of the Four Masters | Ó hUiginn, Ruairí | Article in Book | | 2016 |
| Aspects of clause subordination in the Celtic languages | Ó hUiginn, Ruairí | Article in Book | | 1997 |
| Béalra aistí ar theangeolaíocht na Gaelige | Ó Catháin, BrianÓ hUiginn, Ruairí | Monograph or Collective Volume | An Sagart | 2001 |
| Captain Somhairle and his books revisited | Ó hUiginn, Ruairí | Article in Book | | 2010 |
| Complementation in early Irish : the verba dicendi | Ó hUiginn, Ruairí | Article in Journal | | 1998 |
| Crúachu, Connachta, and the Ulster cycle | Ó hUiginn, Ruairí | Article in Journal | | 1988 |
| Donnchadh O Corrain (1942-2017) | Ó hUiginn, Ruairi | Article in Journal | | 2018 |
| Duanaire Finn | Ó hUiginn, Ruairí | Article in Book | | 1995 |
| Fergus, Russ and Rudraige : a brief biography of Fergus Mac Róich | Ó hUiginn, Ruairí | Article in Journal | | 1993 |
| Fiannaigheacht, family, faith and fatherland | Ó hUiginn, Ruairí | Article in Book | | 2012 |
| Fiannaigheacht, family, faith and fatherland | Ó hÚiginn, Ruairí | Article in Book | | 2012 |
| Gaeilge Chonnacht | Ó hUiginn, Ruairí | Article in Book | Roinn na Sean-Gaeilge, Coláiste Phádraig, Maigh Nuad: | 1994 |
| Growth and development in the late Ulster Cycle : the case of Táin Bó Flidais | Ó hUiginn, Ruairí | Article in Book | | 2006 |
| Heinrich Zimmer | Ó hUiginn, Ruairí | Article in Book | | 2013 |
| Irish Europe, 1600-1650 : writing and learning | | Monograph or Collective Volume | Four Courts | 2013 |
| Irish literature in Spanish Flanders | Ó hUiginn, Ruairí | Article in Book | | 2010 |
| Léachtaí Cholm Cille XL : Foinn agus focail | | Monograph or Collective Volume | An Sagart | 2010 |
| Léachtaí Cholm Cille XXIX : Foinn agus fonnadóirí | | Monograph or Collective Volume | An Sagart | 1999 |
| Léachtaí Cholm Cille XXVI : Léann na Gaeilge: súil siar, súil chun cinn | | Monograph or Collective Volume | An Sagart | 1996 |
| Léachtaí Cholm Cille XXVII : Scoláirí Gaeilge | | Monograph or Collective Volume | An Sagart | 1997 |
| Léachtaí Cholm Cille XXVIII : Iriseoireacht na Gaeilge | | Monograph or Collective Volume | An Sagart | 1998 |
| Léachtaí Cholm Cille XXX : Breis faoinár ndúchas spioradálta | | Monograph or Collective Volume | An Sagart | 2000 |
| Léachtaí Cholm Cille XXXI : Ceist na teanga | | Monograph or Collective Volume | An Sagart | 2001 |
| Léachtaí Cholm Cille XXXII : Curaclam na Gaeilge | | Monograph or Collective Volume | An Sagart | 2002 |
| Léachtaí Cholm Cille XXXIII : Cearbhall Ó Dálaigh | | Monograph or Collective Volume | An Sagart | 2003 |
| Léachtaí Cholm Cille XXXIV : Oidhreacht na lámhscríbhinní | | Monograph or Collective Volume | An Sagart | 2004 |
| Lebor na hUidre : Codices Hibernenses Eximii, 1 | | Monograph or Collective Volume | Royal Irish Academy | 2015 |
| Lebor na hUidre : from Clonmacnoise to Kilbarron | Ó hUiginn, Ruairí | Article in Book | | 2015 |
| Lebor na hUidre and Dindshenchas Érenn | Ó hUiginn, Ruairí | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| Notes on Old Irish syntax | Ó hUiginn, Ruairí | Article in Journal | | 1987 |
| Oileamhain Con Cualainn: ‘Cú Chulainn’s Training’ | Ó hUiginn, Ruairí | Article in Journal | | 2002 |
| On the Old Irish figura etymologica | Ó hUiginn, Ruairí | Article in Journal | | 1983 |
| Pádraig Ó Fiannachta : foilsitheoir | Ó hUiginn, Ruairí | Article in Book | | 2018 |
| Scholars, schools and scholasticism : aspects of the Irish language and medieval learning | Ó hUiginn, Ruairí | Article in Book | | 2009 |
| Some late tales of the Ulster Cycle | Ó hUiginn, Ruairí | Article in Book | | 2013 |
| Somhairle Mac Domhnaill agus Duanaire Finn | Ó hUiginn, Ruairí | Article in Book | | 2007 |
| Terms for 'death' and 'dying' in Irish | Ó hUiginn, Ruairí | Article in Book | | 2016 |
| The background and development of Táin Bó Cúailnge | Ó hUiginn, Ruairí | Article in Book | | 1992 |
| The Book of Ballymote : scholars, sources and patrons | Ó hUiginn, Ruairí | Article in Book | | 2018 |
| The Book of Ballymote: Codices Hibernenses Eximii II | | Monograph or Collective Volume | Royal Irish Academy | 2018 |
| The Irish language | Ó hUiginn, Ruairí | Article in Book | | 2008 |
| The literature of the Laigin | Ó hUiginn, Ruairí | Article in Journal | | 1990 |
| Tomás Ó Máille | Ó hUiginn, Ruairí | Article in Book | | 1997 |
| Tongu do dia toinges mo thuath and related expressions | Ó hUiginn, Ruairí | Article in Book | | 1989 |
| Transmitting the text : some linguistic issues in the work of the Franciscans | Ó hÚiginn, Ruairí | Article in Book | | 2013 |
| Ulidia 2; Proceedings of the Second International Conference on the Ulster Cycle of Tales, National University of Ireland Maynooth, 24-27 June 2005 | | Monograph or Collective Volume | An Sagart | 2009 |
| ‘Laoidhe Mhiss Brooc’ | Ó hUiginn, Ruairí | Article in Book | | 2002 |