| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Ys | bay | f | 1951 | Vatellor | Thoroughbred | France | ||
| Yser | chestnut | f | 1922 | Pommern | Thoroughbred | Great Britain | ||
| Yu Like Mi | bay | f | 2023 | 900217000169114 | 1673-7 Mister Laki | 5700-7 Yunona | Thoroughbred | Donskoi Stud |
| Yu-uil-si | bay | f | 1886 | Le-Panisel | Miss Alis | Thoroughbred | ||
| Yubilej | bay | c | 1995 | 3759-1 Lunn's Particular | 5957 Mimoza | Thoroughbred | Derkul Stud | |
| 940 Yubilej | bay | c | 1931 | 25 Bransi | 350 Yungfrau | Thoroughbred | Voskhod Stud | |
| Yubiley | chestnut | c | 2011 | 643094100262624 | Kitten's Joy | Eulogize | Thoroughbred | USA |
| Yubileyka | bay | f | 2025 | 643090000705016 | 2047-8 Buran Bars | 5872-7 Yurspring | Thoroughbred | Mr Turdiyev V. A. |
| Yubileyny | grey | c | 2010 | 0625-4 Cherry Mix | 3479-5 You Live and Learn | Thoroughbred | Studfarm "711" | |
| 5368-7 Yubilyarka | chestnut | f | 2014 | 0327-3 Bor | 3067-5 Iutlandiia | Thoroughbred | Voskhod Stud |