| Registered Name | Owner / Club | Status |
|---|---|---|
| Crunchie | Breda Mulcahy East Cork | Approved |
| Crusheen Silver | Catherine Hayden Abbeylands | Approved |
| Cruzo | Paula Tracy Annaharvey | Approved |
| Crvghs Prince | Eva O'Shaughnessy Winterdown | Approved |
| Cry of the Dreamer (IRE) | Patricia Newman Mosstown | Approved |
| CSC Indian Clouds | Nicola Coxford Inishowen | Approved |
| CSF Olympic You Too | Jo Penfold Lisduff | Approved |
| Cuban Rose | Anne Clune Carne | Approved |
| Cuchulainn Clover | Emma Redmond Rathfarnham | Approved |
| Cuddley Duddly | Claire Comerford Friary | Approved |
| Cuffesgrange Almost | Stephen Lyons South West | Approved |
| Cuffesgrange Balda Belle | Samantha Sherrington Cill Dara | Approved |
| Cuffesgrange Chippette | Eoin O' Neill Treegrove | Approved |
| Cuffesgrange Contender | Alan Briscoe Ballinasloe | Approved |
| Cuffesgrange Innocence | Christine Finn Drynam | Approved |