| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Sovinista | bay | f | 1991 | Soviet Star | Princess Genista | Thoroughbred | Great Britain | |
| Sovinjon | chestnut | c | 2022 | 643090000485300 | 0833-5 Indian Jameson | 4450-6 Samotsvetnaya | Thoroughbred | Mr Yukhigov N.S. |
| Sovka | bay | f | 1975 | 3005 Anilin | 4487 Sopochka | Thoroughbred | Voskhod Stud | |
| Sovmen | bay | c | 1997 | 3538-1 Kris Kringle | 7927 Pantera | Thoroughbred | Erdan Farm | |
| Sown | chestnut | f | 1983 | Grenfall | Bad Seed | Thoroughbred | USA | |
| Soy Numero Uno | bay | c | 1973 | Damascus | Tasma | Thoroughbred | USA | |
| Soya | bay | f | 1975 | 3143 Sayan | 4043 Stikhiya | Thoroughbred | Voskhod Stud | |
| Soyetka | chestnut | f | 2024 | 900215006161638 | 1639-7 Companion | 6761-8 Strunka | Thoroughbred | Mr. Ivannikov I.N. |
| Soyug | bay | c | 1983 | 3231 Gelar | 4823 Sarygamysh | Thoroughbred | Akstafinsk Stud | |
| Soyuz | d.-bay | c | 1977 | 3178-1 Zotos | 4833 Sorbonna | Thoroughbred | Streletsk Stud |