| Registered Name | Owner / Club | Status |
|---|---|---|
| Tobruk Diamond | Amy Fitzgerald Killcarrick | Approved |
| Toby | Jennifer Fitzpatrick Brooke Lodge | Approved |
| Toby Junior | Kieran Morrin Greenvalley | Approved |
| Todds Surprise | Michael Dawson Nuenna Farm | Approved |
| Togher Tequila | Mary Ronayne Hally Coolbell | Approved |
| Togherstown Montana | Aoife Brady Headfort | Approved |
| Told You So | Siofra Hayes Moriarty Kilronan | Approved |
| Tom Doyle | Martin O'Brien Cheval | Approved |
| Tom's Article (IRE) | Joanna Younghusband Friary | Approved |
| Tom's Bell | Susan Wilson Westport | Approved |
| Tomasino | Catherine Fitzpatrick Tinahely | Approved |
| Tombo No Heishi | Una Hanan Castle Hill | Approved |
| Tomboy Blue | Liisa Rantamaki Rathangan | Approved |
| Tomgar Bonita | Veronica Levins Greenvalley | Approved |
| Tomgar Infusion | Caroline Marwood Knocknamana Country | Approved |