| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Triple Wow | bay | f | 1983 | Coastal | Iva Reputation | Thoroughbred | Canada | |
| Triplicate | chestnut | c | 1941 | Reigh Count | Fairday | Thoroughbred | USA | |
| Trippi | bay | c | 1997 | End Sweep | Jealous Appeal | Thoroughbred | USA | |
| Trirema | bay | f | 1977 | 3139 Rapid | 4502 Tigvera | Thoroughbred | "Konniy Zavod imeni Pervoy Konnoi Armii" OJSC | |
| Triscay | chestnut | f | 1987 | Marscay | Tristram Lady | Thoroughbred | Avstraliia | |
| Trissa | bay | f | 2007 | 250259600296489 | Anabaa | Treasure Queen | Thoroughbred | France |
| Trissotin | chestnut | c | 1937 | Simson | Thoroughbred | |||
| Tristan | chestnut | c | 1878 | Hermit | Thriff | Thoroughbred | Great Britain | |
| 0299-3 Tristan | bay | c | 1994 | 3809-1 Stand-To | 7489 Austeriya | Thoroughbred | Stud-farm "Stavropolskiy 170" | |
| Tristan | bay | c | 2023 | 643090000617762 | 2023-8 Khot Svord | 6617-8 Doblestnaya | Thoroughbred | Mr Dordzhiev A.N. |