| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Stradford | chestnut | G | 2008 | 291 Sbor | 832 Tropinka | Hannoveraner | GSK Kirowskaja s ippodromom | |
| Stradnieks Lb 675 | c | Latvian Warmblut | Latvia | |||||
| Stramien van de Heffinck | Db. | f | 1995 | Concorde | Jikki | belgiyskaya polukrovnaya | Belgium | |
| 243 Straniza 18 | grey | f | 1965 | 1280 Singapur | 353 Zirzeja 41 | Tersk | Stud-farm "Stavropolskiy 170" | |
| Strategas | chestnut | c | 1982 | 3098 Rosmarin | 0134 Schisma | Trakehner | Nemuno Gestut | |
| Strategija | black | f | 2003 | 364 Gordon | 2118 Sierra | Trakehner | Gestut Dowator (RZOP KS i K) | |
| Strauja 2448 | d.-bay | f | 1978 | Sprincis 741 | Juta L 2355 | Latvian Warmblut | Latvia | |
| 261 Strefa | chestnut | f | 1962 | Akcjonariusz | Stepola 5131 | Trakehner | Lishki kz | |
| Streife | Db. | f | 1980 | Holsteiner | Germany | |||
| 2920 Strekosa | black | f | 2005 | 189 Sator 41 | 2128 Sudba | Trakehner | Gestut Dowator (RZOP KS i K) |