| 'Journeys of the Mind: A Life in History', by Peter Brown, Princeton, 2023 | O'Loughlin, Thomas | Article in Journal | | 2024 |
| 'Res, tempus, locus, persona': Adomnán's exegetical method | O'Loughlin, Thomas | Article in Journal | | 1997 |
| 'The unfortunate Costigan', first surveyor of the Dead Sea | O'Loughlin, Thomas | Article in Journal | | 2011 |
| A Dubliner searches for Sodom and Gomorrah | O'Loughlin, Thomas | Article in Book | | 2015 |
| A Galway man meets John Brown before he was 'Mouldering in the grave' | O'Loughlin, Thomas | Article in Book | | 2015 |
| About the Irish Institute of Hellenic Studies | Loughlin, Thomas | Article in Book | | 2012 |
| Adomnán : a man of many parts | O'Loughlin, Thomas | Article in Book | | 2001 |
| Adomnan and 'mora rotunditas' | O'Loughlin, Thomas | Article in Journal | | 1996 |
| 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 |
| Adomnán at Birr, AD 697 : essays in commemoration of the law of the innocents | O'Loughlin, Thomas | Monograph or Collective Volume | Four Courts | 2001 |
| Adomnán of Iona : theologian, lawmaker, peacemaker | | Monograph or Collective Volume | Four Courts | 2010 |
| Adomnan the illustrious | O'Loughlin, Thomas | Article in Journal | | 1995 |
| Adomnán's De Locis Santis : a textual emendation and an additional source identification | O'Loughlin, Thomas | Article in Journal | | 1997 |
| Adomnán's plans in the context of his imagining 'the most famous city' | O'Loughlin, Thomas | Article in Journal | | 2012 |
| An early thirteenth-century map in Dublin : a window into the world of Giraldus Cambrensis | O'Loughlin, Thomas | Article in Journal | | 1999 |
| An Irish (?) interpolation in Caesarius of Arles' Sermo 84 | O'Loughlin, Thomas | Article in Journal | | 1993 |
| Buried among the saints | O'Loughlin, Thomas | Article in Book | | 2016 |
| Cardinal Newman and the Catholic University : a selection from Newman's Dublin writings | McCartney, DonalNewman, John Henry, cardinal, 1801-1890O'Loughlin, Thomas | Monograph or Collective Volume | University College Dublin | 1990 |
| Celibacy in the Catholic church : a brief history | O'Loughlin, Thomas | Article in Journal | | 1995 |
| Celtic theology : humanity, world, and God in early Irish writings | O'Loughlin, Thomas | Monograph or Collective Volume | [s.n.] | 2000 |
| Columba 1500 - the extent of our knowledge | O'Loughlin, Thomas | Article in Journal | | 2021 |
| Contesting Ireland : Irish voices against England in the eighteenth century | McLoughlin, Thomas | Monograph or Collective Volume | Four Courts | 1999 |
| Discovering Saint Patrick | O'Loughlin, Thomas | Monograph or Collective Volume | Darton Longman & Todd | 2005 |
| Distant Islands : the topography of holiness in the Nauigatio Sancti Brendani | O'Loughlin, Thomas | Article in Book | | 1999 |
| Division systems for the gospels : the case of the Stowe St John (Dublin, RIA, D.ii.3), p. 150 | O'Loughlin, Thomas | Article in Journal | | 2007 |
| Edward Dodwell and the 'Rediscovery of Greece' | Loughlin, Thomas | Article in Journal | | 2016 |
| How early Irish canon lawyers dealt with St Augustine's indecent proposal | O'Loughlin, Thomas | Article in Book | | 2019 |
| Irish preaching before the end of the ninth century : assessing the extent of our evidence | O'Loughlin, Thomas | Article in Book | | 2001 |
| Irish travellers to the Dead Sea: The interplay and impact of empirical investigation and Biblical exegesis | O'Loughlin, Thomas | Article in Book | | 2018 |
| Journeys on the edges : the Celtic tradition | O'Loughlin, Thomas | Monograph or Collective Volume | Dalton, Longman and Todd | 2000 |
| Living in the ocean | O'Loughlin, Thomas | Article in Book | | 1997 |
| Map awareness in the mid-seventh century : Jonas' Vita Columbani | O'Loughlin, Thomas | Article in Journal | | 2010 |
| Mapping the book of Joshua | O'Loughlin, Thomas | Article in Book | | 2013 |
| Marriage and sexuality in the Hibernensis | O'Loughlin, Thomas | Article in Journal | | 1997 |
| Medieval papal letters : a source for local history | O'Loughlin, Thomas | Article in Journal | | 1993 |
| Monasteries and manuscripts : the transmission of Latin learning in early medieval Ireland | O'Loughlin, Thomas | Article in Book | | 2001 |
| Muirchú's 'Vita Patricii' : a note on an unidentified source | O'Loughlin, Thomas | Article in Journal | | 1996 |
| Muirchu's poisoned cup : a note on its sources | O'Loughlin, Thomas | Article in Journal | | 2006 |
| Muirchú’s theology of conversion in his Vita Patricii | O'Loughlin, Thomas | Article in Book | | 2002 |
| Platform. Remembering the First World War, Ireland and historians | O'Loughlin, Thomas
| Article in Journal | | 2016 |
| Reading Muirchú's Life of St Patrick as a 'Sacred Narration' | O'Loughlin, Thomas | Article in Journal | | 2018 |
| Reading Muirchu's Tara-event within its background as a biblical "trial of divinities" | O'Loughlin, Thomas | Article in Book | | 2003 |
| Sister Act | O'Loughlin, Thomas | Article in Book | | 2019 |
| Sister act | O'Loughlin, Thomas | Article in Journal | | 1994 |
| St Patrick : the legend and the bishop | O'Loughlin, Thomas | Article in Journal | | 2006 |
| St. Patrick : the man and his works | O'Loughlin, Thomas | Monograph or Collective Volume | Triangle | 1999 |
| Teachers and code-breakers : the Latin Genesis tradition, 430-800 | O'Loughlin, Thomas | Monograph or Collective Volume | [s.n.] | 1998 |
| The biblical text of the Book of Deer : evidence for the remains of a division system from its manuscript ancestry. APPENDIX: A concordance of the display initials of the Book of Deer with the Ammonian sections / Eusebian canons; | O'Loughlin, Thomas | Article in Book | | 2008 |
| The Celtic homily : creeds and eschatology | O'Loughlin, Thomas | Article in Journal | | 1998 |
| The demand and supply of priests to the United States from All Hallows College, Ireland, between 1842-1860 | O'Loughlin, Thomas | Article in Journal | | 1983 |
| The Derrynaflan paten : discovering an ancient theology | O'Loughlin, Thomas | Article in Book | | 2012 |
| The diffusion of Adomnán's De Locis Sanctis in the medieval period | O'Loughlin, Thomas | Article in Journal | | 2000 |
| The earliest world maps known in Ireland | O'Loughlin, Thomas | Article in Journal | | 1993 |
| The Irish Institute of Hellenic Studies at Athens | Loughlin, Thomas | Article in Journal | | 2012 |
| The Latin sources of medieval Irish culture | O'Loughlin, Thomas | Article in Book | | 1996 |
| The library of Iona in the late seventh century : the evidence from Adomnán 'De locis sanctis' | O'Loughlin, Thomas | Article in Journal | | 1994 |
| The marquess and Mycenae | Loughlin, Thomas | Article in Journal | | 2021 |
| The myth of insularity and nationality in Ireland | O'Loughlin, Thomas | Article in Book | | 2007 |
| The Order of Deacons in early Irish canonical sources : a contribution to understanding the evolution of a 'Major Orders' in the western church | O'Loughlin, Thomas | Article in Journal | | 2017 |
| The Order of Deacons in early Irish canonical sources : a contribution to understanding the evolution of a ‘Major Orders’ in the Western church | O’Loughlin, Thomas | Article in Journal | | 2017 |
| The plan of the New Jerusalem in the Book of Armagh | O'Loughlin, Thomas | Article in Journal | | 2000 |
| The scriptures and early medieval Ireland : proceedings of the 1993 Conference of the Society for Hiberno-Latin Studies on Early Irish Exegesis and Homilectics | | Monograph or Collective Volume | Brepols | 1999 |
| The so-called capitula for the book of the apocalypse in the Book of Armagh (Dublin, Trinity College, 52) and Latin exegesis | O'Loughlin, Thomas | Article in Book | | 2015 |
| The tombs of the saints : their significance for Adomnán | O'Loughlin, Thomas | Article in Book | | 2001 |
| Tradition and exegesis in the eighth century : the use of patristic sources in early medieval scriptural commentaries | O'Loughlin, Thomas | Article in Book | | 1999 |
| Unexplored Irish influence on Eriugena | O'Loughlin, Thomas | Article in Journal | | 1992 |