| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Sommerlied | bay | f | 1998 | Darshaan | Song Maker | Thoroughbred | Ireland | |
| Sommernacht | bay | f | 1997 | Monsun | Shona | Thoroughbred | Germany | |
| Sommes Sound | chestnut | f | 1984 | Assert | Fast Approach | Thoroughbred | USA | |
| Somnambula | br. | f | 1865 | Apropos | Bystrzhitza | nechistokrovnaya | u Grabovskogo L.F. | |
| Somnambula | bay | f | 1842 | Argus | Serna | Thoroughbred | u Petrovskogo I.P. | |
| Somnambula | bay | f | 1961 | Chanteur 2 | Sleeping Beauty | Thoroughbred | Great Britain | |
| Somos | f | 1938 | Mannamead | Styrian Steel | Thoroughbred | Hungary | ||
| Son Ange | chestnut | c | 1968 | Raise a Native | Mon Ange | Thoroughbred | USA | |
| Son Excellence | chestnut | c | 1967 | Sea-Bird | Fortunate Isle | Thoroughbred | USA | |
| Son Of Bald Galloway | grey | c | Bald Galloway | Thoroughbred | Great Britain |