| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Stage Queen | grey | f | 1976 | Ruritania | Chilly | Thoroughbred | Canada | |
| Stage School | d.-bay | f | 2002 | Sunday Silence | Danseur Fabuleux | Thoroughbred | USA | |
| Stagecraft | d.-bay | c | 1987 | Sadler's Wells | Bella Colora | Thoroughbred | Great Britain | |
| Staid | bay | f | 1968 | Minor Portion | Straightlaced | Thoroughbred | Avstraliia | |
| Staines | f | 1896 | Thoroughbred | Great Britain | ||||
| Stajer | bay | c | 1997 | 3817-1 Angel | 7172 Sladost | Thoroughbred | Lenina Farm | |
| 1513 Stajka | chestnut | f | 1935 | 186 Tagor | 317 Skolopendra | Thoroughbred | Streletsk Stud | |
| 4889-6 Stakhana | chestnut | f | 2012 | 643094100237085 | 0378-3 Terrestrial | 2030-4 Sivta | Thoroughbred | Voskhod Stud |
| 6129-1 Stal | d.-bay | f | 1982 | 3154-1 Athens Wood | 4492 Strojka | Thoroughbred | Voskhod Stud | |
| 749 Stal | bay | f | 1931 | 117 Markoni | 299 Salli | Thoroughbred | Issyk-Kul Stud |