| Trakehner Name | Sex | Foaled | Sire | Dam | Color | |
|---|---|---|---|---|---|---|
| Upwind Sheila | Mare | Unknown | Unknown | |||
| Urach | Mare | 1990 | Donaufürst *Ps*E* | Ulm | chestnut | |
| Urania | Mare | 1937 | branded EP mare | Unknown | chestnut | |
| Urbana | Mare | Opal | Urbe | Unknown | ||
| Urbe | Mare | 1974 | Galib Ben Afas ox | Urne | chestnut | |
| Uri | Stallion | Unknown | Unknown | |||
| Urieenta | Mare | Pericles xx | Unknown | Unknown | ||
| Uriel | Stallion | 1998 | Pennant | Upstart | dark bay | |
| Urifeyn ox | Mare | Unknown | Unknown | |||
| Urinia | Mare | Cancara II | Urania | gray | ||
| Urne | Mare | Unknown | Unknown | |||
| Ur Rabbah ox | Mare | Unknown | Unknown | |||
| Ursa Major | Stallion | 1983 | Idol | Walla Bear xx | chestnut | |
| Ursprung | Stallion | 1996 | Cornus | St.Pr.St. Utimor | bay | |
| Ursula | Mare | 1941 | branded EP mare | Unknown | chestnut | |
| Urte | Mare | Unknown | Unknown | |||
| Urtica | Mare | 1965 | Pergamos | Ultima | chestnut | |
| Uruguary xx | Mare | Unknown | Unknown | |||
| Ur-Wind | Gelding | 1985 | Donauwind *E* | Undine | bay | |
| Uschi | Mare | 1954 | Apfelkern | Ute | black | |
| Uschi II | Mare | 1955 | Hannemann | Ursula | chestnut | |
| Usha xx | Mare | 1959 | Summer Special xx | Glee xx | Unknown | |
| Uskok | Stallion | Unknown | Unknown | |||
| Utah | Mare | 1975 | Uttar Pradesh | Adelgisa | gray | |
| Uta II | Mare | Harlekin | Ute | black |