| A chronological account of nearly four hundred Irish writers with a descriptive catalogue of their work | Mac Eoin, GearóidO'Reilly, Edward | Monograph or Collective Volume | Irish University Press | 1970 |
| Hereditas : essays and studies presented to Séamus Ó Duilearga | | Monograph or Collective Volume | An Cumann le Béaloideas Éireann / Folklore Society of Ireland | 1975 |
| Kathleen Mulchrone : 'Cáit' | Mac Eoin, Gearóíd | Article in Book | | 2005 |
| Maol Mhuire agus a shinsear | Mac Eoin, Gearóid | Article in Book | | 2015 |
| Mar a bunaíodh 'Studia Hibernica', 1959-1961 | Mac Eoin, Gearóid | Article in Journal | | 2011 |
| Migratory legends in medieval Irish literature : first response | Mac Eoin, Gearóid | Article in Journal | | 1992 |
| Observations on Saltair na Rann | Mac Eoin, Gearóid | Article in Journal | | 1982 |
| Observations on some middle-Irish homilies | Mac Eoin, Gearóid | Article in Book | | 1996 |
| Old Irish briugu "hospitaller" and connected words | Mac Eoin, Gearóid | Article in Journal | | 1999 |
| On the dating of middle Irish texts | Mac Eoin, Gearóid | Article in Journal | | 1982 |
| Rudolf Hertz agus a bhean chéile, Caitríona | Mac Eoin, Gearóid | Article in Book | | 2013 |
| Satire in middle Irish literature | Mac Eoin, Gearóid | Article in Book | | 1997 |
| St Patrick's birthplace | Mac Eoin, Gearóid | Article in Book | | 2013 |
| Suithchern and Rónán Dícolla | Mac Eoin, Gearóid | Article in Journal | | 1977 |
| The 'briugu' in early Irish society | Mac Eoin, Gearóid | Article in Journal | | 1997 |
| The Creation of the world in Saltair na Rann | Mac Eoin, Gearóid | Article in Book | | 2014 |
| The date and authorship of 'Saltair na Rann' | Mac Eoin, Gearóid | Article in Journal | | 1960 |
| The death of the boys in the mill | Mac Eoin, Gearóid | Article in Journal | | 1983 |
| The early Irish vocabulary of mills and milling | Mac Eoin, Gearóid | Article in Book | | 1982 |
| The four names of St Patrick | Mac Eoin, Gearóid | Article in Book | | 2002 |
| The lament for Cummíne Fota | Mac Eoin, Gearóid | Article in Journal | | 1977 |
| The modern Celts | Mac Eoin, Gearóid | Article in Book | | 1991 |
| The mysterious death of Loegaire Mac Neill | Mac Eoin, Gearóid | Article in Journal | | 1968 |
| The original name of the Viking settlement at Limerick | Mac Eoin, Gearóid | Article in Book | | 2001 |
| The Provenance of the Book of Leinster | Mac Eoin, Gearóid | Article in Journal | | 2010 |
| Twentieth-century Irish literature | Mac Eoin, Gearóid | Article in Book | | 1969 |