| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| 1403-3 Udjida | bay | f | 2000 | Lavirco | Ulanowa | Thoroughbred | France | |
| 1582 Udobnaya | d.-bay | f | 1940 | 959 Bohemond | 775 Ulina | Thoroughbred | Urvansk Stud | |
| Udobnyy | bay | c | 2010 | не введен | 0505-4 Berlander | 0745-2 Untziya | Thoroughbred | Mindibekov Ivan Ivanovich |
| 00000 Udochka | bay | f | 1996 | 3261-1 Staur | Dekstroza | Thoroughbred | Derkul Stud | |
| Udokan | chestnut | c | 2011 | 643094100262627 | 0985-5 Ters | 2674-4 Dagrain | Thoroughbred | Mr Buhtoyarov V.P. |
| Udontmeanit | f | 1965 | Gray Phantom | Lady Bourbon | Thoroughbred | USA | ||
| Udyelny Knyaz | bay | c | 2011 | не введен | 0103-2 Corvinius | 0744-2 Umbra | Thoroughbred | Agro-Galan Farm |
| 0362-3 Uels | bay | c | 1994 | 3510-1 White Reef | 7674-1 Elgona | Thoroughbred | Teberda Farm | |
| Uelson (pal) | bay | c | 1998 | 3510-1 White Reef | 7862-1 Energiya | Thoroughbred | Bazaralieva N.H. | |
| Uelsya | d.-bay | f | 2019 | 643090000450260 | 1245-6 Larson | 2558-4 Uenna | Thoroughbred | Mr Tharkakhov N.H. |