| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Source Sucree | br. | f | 1940 | Admiral Drake | Lavendula | Thoroughbred | France | |
| Sourciere | br. | f | 1935 | Thoroughbred | Argentina | |||
| Sourdine | bay | f | 1933 | Royal Minstrel | Prudish | Thoroughbred | USA | |
| Souryva | bay | f | 1930 | Gainsborough | L'Esperance | Thoroughbred | France | |
| South Ocean | bay | f | 1967 | New Providence | Shining Sun | Thoroughbred | Canada | |
| South Pacific | bay | f | 1991 | Kings Lake | Scilla | Thoroughbred | Germany | |
| South Remera | bay | f | 2003 | Southern Halo | Ramada Inn | Thoroughbred | Argentina | |
| South Rising | chestnut | c | 2009 | Whywhywhy | Favorable Review | Thoroughbred | USA | |
| South Sea Blues | chestnut | f | 1994 | Cure The Blues | Alloy | Thoroughbred | USA | |
| South Sea Dancer | bay | f | 1981 | Northern Dancer | South Ocean | Thoroughbred | USA |