| Registered Name | Owner / Club | Status |
|---|---|---|
| Triple Threat | John Gavin Ashbrook | Approved |
| Tristinagh Boy | Lorna Coffey Ross House | Approved |
| Trition | Patrick Goland Ballycanew | Approved |
| Triumph Of The Spirit | Kerri Goodison Ross House | Approved |
| Trivium | PAUL GILLILAND Border Counties | Approved |
| Troublegum | Amelia Walsh Deerpark | Approved |
| Troy | Elaine Wilson Benbulben | Approved |
| Troy (HPA) | Paul Lynch Castle Leslie | Approved |
| Troy (HPA1) | Edel Gilligan Barnacarroll | Approved |
| Troy (IPSA) | Jessica Morgan Gap of the North | Approved |
| Troys Lock (IRE) | Marie Moran Gavin Mullingar | Approved |
| Troys Sidekick | Eileen Cummins Ashbrook | Approved |
| Troyson | Lisa George Riverside | Approved |
| Truck N Roll | Nicky Breslin Meath | Approved |
| Trucking Along (IRE) | Ruth Walsh Lismore | Approved |