| Name | Position | Party | Constituency |
|---|---|---|---|
| Emma Coffey | Councillor | Fianna Fáil | Dundalk South |
| Paudie Coffey | Former Representative | Fine Gael | |
| Emma Coffey | Former Representative | Fianna Fáil | |
| Oisín Patrick Coghlan | Former Representative | Independent | |
| Paul Coghlan | Former Representative | Fine Gael | |
| Eamonn Coghlan | Former Representative | Fine Gael | |
| Alan Coleman | Councillor | Independent | Bandon-Kinsale |
| Michael Coleman | Councillor | Fianna Fáil | Celbridge |
| Anne Colgan | Councillor | Independent | Dundrum |
| Bill Collentine | Councillor | Fianna Fáil | Mullingar |
| Clare Colleran Molloy | Councillor | Fianna Fáil | Ennis |
| Yvonne Collins | Councillor | Fianna Fáil | Rathfarnham Templeogue |
| Danny Collins | Councillor | Independent | Bantry - West Cork |
| Bridie Collins | Councillor | Fianna Fáil | Adare-Rathkeale |
| Aine Collins | Former Representative | Fine Gael | |
| Joan Collins | TD | Independents 4 Change | Dublin South-Central |
| David Collins | Councillor | Unknown | Athenry-Oranmore |
| Niall Collins | TD | Fianna Fáil | Limerick County |
| John Collins | Former Representative | Independent | |
| Noel Collins | Councillor | Independent | Midleton |
| MIchael Collins | TD | Independent | Cork South-West |
| Kenneth Collins | Councillor | Sinn Féin | Cork City North West |
| James Collins | Councillor | Fianna Fáil | Limerick City West |
| Michael Collins | Councillor | Fianna Fáil | Newcastle West |
| Timmy Collins | Former Representative | Independent | |
| Michael Colreavy | Former Representative | Sinn Féin | |
| Michael Comiskey | Former Representative | Fine Gael | |
| Michael Conaghan | Former Representative | Labour | |
| Tom Conaghan | Councillor | Independent | Donegal |
| Martin Condon | Former Representative | Independent |