| Cork's St Patrick's street : a history | O'Callaghan, Antóin | Monograph or Collective Volume | Collins Press | 2010 |
| Of timber, iron and stone : a journey through time on the bridges of Cork | O'Callaghan, Antóin | Monograph or Collective Volume | Inversnaid Publications | 1991 |
| Read all about it : statues and monuments in Cork City : an illustrated exploration | O'Callaghan, Antóin | Monograph or Collective Volume | Cork City Library | 2019 |
| St Vincent's Church and the Vincentians in Cork | O'Callaghan, Antóin | Article in Journal | | 2025 |
| The churches of Cork city : an illustrated history | O'Callaghan, Antóin | Monograph or Collective Volume | History Press Ireland | 2016 |
| The lord mayors of Cork, 1900-2000 | O'Callaghan, Antóin | Monograph or Collective Volume | Inversnaid Publications | 2000 |
| The statue : Cork's monument to Father Mathew, Apostle of Temperance | O'Callaghan, Antóin | Monograph or Collective Volume | Cork City Library | 2014 |
| Where bridges stand : the River Lee bridges of Cork city | O'Callaghan, Antóin | Monograph or Collective Volume | History Press Ireland | 2012 |