| 'A mere Irish man, but a good protestant': Sir Francis Shane, 1540-1614 | Mannion, Joseph | Article in Journal | | 2017 |
| Anglicizing Tudor Connacht: The Expansion of English Rule in the Lordships of Clanrickard and Hy Many | Mannion, Joseph | Monograph or Collective Volume | Four Courts Press | 2024 |
| Báetán, Cúan and Colmán early Christian founders in East Galway | Mannion, Joseph | Article in Journal | | 2014 |
| Elizabethan County Galway | Mannion, Joseph | Article in Journal | | 2012 |
| Politics, kinship and culture in Gaelic Ireland, c. 1100–c. 1690. Essays for the Irish Chiefs’ and Clans’ Prize in History | | Monograph or Collective Volume | Wordwell | 2018 |
| Tech Saxan. An Anglo-Saxon monastic settlement in early medieval east Galway | Mannion, Joseph | Article in Journal | | 2008 |
| The life, legends and legacy of Saint Kerrill : a fifth century east Galway evangelist | Mannion, Joseph | Monograph or Collective Volume | The author | 2004 |
| The Senchineoil and the Sogain. Differentiating between the pre-Celtic and early Celtic tribes of central Galway | Mannion, Joseph | Article in Journal | | 2006 |
| Vestiges of Celtic mythology in the placenames of Lough Corrib and its hinterland | Mannion, Joseph | Article in Journal | | 2007 |