| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| 1685 Yagundi | chestnut | f | 1938 | 1162 Caymanas | 408 Indiya | Thoroughbred | Muhrovansk Stud | |
| 0215-2 Yakhon | chestnut | c | 1993 | Soviet Lad | 7775 Royal Cherub | Thoroughbred | Voskhod Stud | |
| 1014-5 Yakhont | bay | c | 1993 | 3509-1 Leo Castelli | 7667-1 Boreen | Thoroughbred | Voskhod Stud | |
| Yakhont Ay | chestnut | c | 2018 | 643093300047435 | 1454-7 Maysur | 0449-2 Ligiya | Thoroughbred | Mr. Khuseynov A.S. |
| Yakhta | bay | f | 1847 | Akter | Ladya | Thoroughbred | u Mosolova A.F. | |
| Yakhta Bars | bay | f | 2015 | 643095317832369 | Broken Vow | 4563-6 Yankeeindixieland | Thoroughbred | Barsuk T.L. Farm |
| Yakima Prune | grey | f | 1975 | Time Tested | Plumb Dangerous | Thoroughbred | USA | |
| Yaktylyk | bay | f | 2024 | 643090000704891 | 1776-7 Top Chief | 6296-8 Kreativnaya | Thoroughbred | "Iljino" Farm |
| Yale Coed | chestnut | f | 1972 | Majestic Prince | Mellow Marsh | Thoroughbred | USA | |
| Yalta | bay | f | 1890 | Don-Zhuan | Rogneda | Thoroughbred |