| 'The Department' in time of war and revolution | Kelly, Michael | Article in Book | | 2016 |
| A small hoard of Anglo-Saxon and Hiberno-Norse coins from county Louth | Kelly, Michael | Article in Journal | | 1985 |
| Gender and voter appeal in Irish elections, 1948-1997 | O'Kelly, Michael | Article in Journal | | 2000 |
| In the land of the free. Three tales of Roscommon emigrants in 19th centiury America | Kelly, Michael | Article in Journal | | 2019 |
| Liam Gaul, a proud Wexford man | Kelly, Michael | Article in Journal | | 2023 |
| Liverpool's Irish connection | Kelly, Michael | Monograph or Collective Volume | AJH | 2006 |
| Reminiscences of Michael Kelly of the King's Theatre and Theatre Royal Drury Lane. 2 vols. | Kelly, Michael | Monograph or Collective Volume | | 1968 |
| Struggle and strife on a Mayo estate, 1833-1903 : the Nolans of Logboy and their tenants | Kelly, Michael | Monograph or Collective Volume | Four Courts | 2014 |
| Sunlight beyond the grave : the story of the Carling brothers | Kelly, Michael | Monograph or Collective Volume | McIntyre Press | 2013 |
| The Book of Ogham | Kelly, Michael | Monograph or Collective Volume | Lodestar | 2005 |