| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Uznik 70 | d.-grey | c | 1989 | 10624 Naftalin | 17180 Utopiya | Orlov trotter | Khrenovskoy Stud | |
| Uznik R.T. | bay | c | 2020 | Zolotoy | 22827 Ustupchivaya | Orlov trotter | "Roshcha" | |
| Uznitsa | grey | f | 1959 | 7518 Zabytyy | 10486 Usmishka | Orlov trotter | Dubrovskiy konzavod | |
| Uznitsa | grey | f | 1981 | 9606 Zabeg | 16229 Undina | Orlov trotter | Khrenovskoy Stud | |
| Uzolla LAG | d.-grey | f | 2022 | Original | Udarnitsa | Orlov trotter | Konezavod OOO "LAG-Servis AGRO" | |
| 3760 Uzor | black | c | 1928 | 856 Udaloy Krolik | 772 Partizanka | Orlov trotter | Lavrovskiy 14 | |
| Uzor | grey | c | 2014 | Usilitel | 20318 Zarnitsa | Orlov trotter | Sakhnova E.V. | |
| Uzor | grey | c | 1966 | 7944 Otklik | 13270 Uvertyura | Orlov trotter | Dubrovskiy konzavod | |
| Uzor | grey | c | 1988 | 10376 Zarok | 16978 Usmeshka | Orlov trotter | Zavivalovskii konzavod | |
| 11226 Uzor | grey | c | 1991 | 10635 Zapret | 16962 Udacha | Orlov trotter | Novotomnikovskii konzavod |