| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Steysi | d.-bay | f | 2016 | 643110000341565 | 1267-6 Sabakh | 2534-4 Stemine | Thoroughbred | Mr. Elmurzaev Z.M. |
| Stezhar | grey | c | 1997 | 3250-1 Razgon | 8123 Siesta | Thoroughbred | Prut Farm | |
| 2489 Stezhka | chestnut | f | 1951 | 1917 Ex Szamuraj | 1759 Arfa | Thoroughbred | Derkul Stud | |
| Stiag | chestnut | c | 1948 | 1456 Gibrid | 1470 Septima | Thoroughbred | Derkul Stud | |
| Stiag | chestnut | c | 1963 | 2290 Gaz | 3062 Satira | Thoroughbred | Streletsk Stud | |
| Stick to Beauty | d.-bay | f | 1973 | Illustrious | Hail to Beauty | Thoroughbred | USA | |
| Sticks n'Stones | bay | f | 1961 | Gee Whiz | Little Tweeny | Thoroughbred | USA | |
| Sticky Case | chestnut | f | 1958 | Court Martial | Run Honey | Thoroughbred | Great Britain | |
| Stifeliia | chestnut | f | 1999 | 0405-3 Skif | 0749-2 Faza | Thoroughbred | Tahtamukaiski Farm | |
| Stigmat | chestnut | c | 1995 | 3743-1 Mysterious Gent | 8123 Siesta | Thoroughbred | Prut Farm |