| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Speak Up Sailor | chestnut | f | 2012 | Midshipman | Speak Up | Thoroughbred | USA | |
| Speakerton | bay | c | 2002 | Spectrum | Kathy Desert | Thoroughbred | Ireland | |
| Spear | f | 1931 | Lord Wembley | Seaspear | Thoroughbred | Great Britain | ||
| Spear Lady | br. | f | 1931 | Lady Everton | Thoroughbred | Avstraliia | ||
| Spearfish | d.-bay | f | 1963 | Fleet Nasrullah | Alabama Gal | Thoroughbred | USA | |
| Spearmint | c | Thoroughbred | Kommaiak Farm | |||||
| Spearmint | bay | c | 1903 | Carbine | Maid of the Mint | Thoroughbred | Great Britain | |
| Spearwort | c | 1917 | Spearmint | Monisima | Thoroughbred | Great Britain | ||
| Spec | chestnut | f | 1898 | Kendal | False Sight | Thoroughbred | Great Britain | |
| Speceffekt | chestnut | c | 2005 | 0181-2 Faktor | 6445-1 Sakhara | Thoroughbred | Belorechenskaia Farm |