| Name | Position | Party | Constituency |
|---|---|---|---|
| Aine Clancy | Former Representative | Labour | |
| TJ Clare | Former Representative | Independent | |
| Michael Clark | Councillor | Unknown | Killiney-Shankill |
| Sorca Clarke | Candidate | Sinn Féin | Longford-Westmeath |
| Michael Clarke | Councillor | Independent | Ballymote-Tubbercurry |
| Paul Clarke | Former Representative | Independent | |
| Bill Clear | Councillor | Social Democrats | Naas |
| Ronan Cleary | Candidate | Aontú | Waterford |
| Peter Cleere | Councillor | Fianna Fáil | Callan-Thomastown |
| John Clendennen | Councillor | Fine Gael | Birr |
| Shane Clifford | Former Representative | Fianna Fáil | |
| Lorraine Clifford-Lee | Candidate | Fianna Fáil | Dublin Fingal |
| Patrick Clohessy | Candidate | Independent | Dublin Central |
| Thomas Clonan | Former Representative | Independent | |
| Ollie Clooney | Councillor | Unknown | Borris in Ossory-Mountmellick |
| Deirdre Clune | Former Representative | Fine Gael | |
| Declan Clune | Councillor | Sinn Féin | Portlaw-Kilmacthomas |
| Karen Coakley | Candidate | Fine Gael | Cork South-West |
| Jim Codd | Candidate | Aontú | Wexford |
| Kathleen Codd-Nolan | Councillor | Fine Gael | Enniscorthy |
| Emma Coffey | Councillor | Fianna Fáil | Dundalk South |
| Paudie Coffey | Senator | Fine Gael | Taoiseach's Nominee |
| Emma Coffey | Former Representative | Fianna Fáil | |
| Oisín Patrick Coghlan | Former Representative | Independent | |
| Paul Coghlan | Senator | Fine Gael | Industrial and Commercial Panel |
| Eamonn Coghlan | Former Representative | Fine Gael | |
| Alan Coleman | Candidate | Independent | Cork South-West |
| Michael Coleman | Councillor | Fianna Fáil | Celbridge |
| Anne Colgan | Councillor | Independent | Dundrum |
| Bill Collentine | Councillor | Fianna Fáil | Mullingar |