| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Stolitza | bay | f | 2020 | 643093300188611 | 1332-6 Lucky First | 5331-7 Star Sky | Thoroughbred | Mr Bondarenko S.V. |
| Stoma | bay | f | 1974 | 3027-1 Murmansk | 4042 Stilistika | Thoroughbred | Streletsk Stud | |
| Ston | bay | c | 1976 | Tacitus | 4484 Skladnaya | Thoroughbred | Onufrievsk Stud | |
| Stone Cottage | f | 1971 | New Providence | Ballistic | Thoroughbred | Canada | ||
| Stone Flow | chestnut | c | 2015 | 985101045247639 | Teofilo | No Such Zone | Thoroughbred | Ireland |
| Stone Flower | bay | f | 1994 | Storm Bird | Lively Living | Thoroughbred | USA | |
| Stone Reef | d.-bay | c | 2005 | Cherokee Run | Slow Jazz | Thoroughbred | USA | |
| Stoneridge | bay | f | 2008 | Harlan's Holiday | Menu Varnish | Thoroughbred | USA | |
| Stop Her | chestnut | f | 1903 | Carbine | Catcher | Thoroughbred | Great Britain | |
| Stop On Red | chestnut | f | 1959 | To Market | Danger Ahead | Thoroughbred | USA |