| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Soto | chestnut | c | 2000 | Dehere | Subtle Fragrance | Thoroughbred | USA | |
| Sotrash | bay | c | 2023 | 900255001897874 | 0766-5 Capital Exposure | 3366-5 Sorosa | Thoroughbred | Abazinsky Farm |
| Sotrudnik | bay | c | 2002 | 4331 Raskat | 0000000 Skarlett | Thoroughbred | chastnyi vladelec Aliev K.K. | |
| Sotsvet Spirit | bay | c | 2020 | 643093300057318 | 1695-7 Spirit of Fridom | 4940-7 Celitelnaya | Thoroughbred | Chapaev Farm |
| Sotti | chestnut | f | 1984 | 3313 Krasnoarmejsk | 4025 Sepiya | Thoroughbred | Alma-Atinsk Farm | |
| Sotto Voce | chestnut | f | 1951 | Some Chance | Elocution | Thoroughbred | USA | |
| Sotzvet | chestnut | c | 2001 | 3650-1 Senat | 0834-2 Tzata | Thoroughbred | Chapaev Farm | |
| Soubrette | bay | f | 1873 | Thoroughbred | France | |||
| Soubrette | bay | f | 1873 | Thoroughbred | France | |||
| Soubrette | chestnut | f | 1932 | Pazman | Zsidolany | Thoroughbred | Hungary |