| Trakehner Name | Sex | Foaled | Sire | Dam | Color | |
|---|---|---|---|---|---|---|
| Sibelius II xx | Stallion | Unknown | Unknown | |||
| Sibolt | Stallion | Unknown | Unknown | |||
| Sicambre xx | Stallion | Unknown | Unknown | |||
| Sickle Hash xx | Stallion | Unknown | Unknown | |||
| Sickle's Image xx | Mare | 1948 | Sickletoy xx | Ariel Image xx | brown | |
| Sickletoy xx | Stallion | Unknown | Unknown | |||
| Sickle xx | Stallion | 1924 | Phalaris xx | Selene xx | brown | |
| Sicspäk | Gelding | 1993 | Kantor II | Sitara | chestnut (gray) | |
| Sid Abouhom ox | Stallion | Unknown | Unknown | |||
| Siddhartha | Gelding | 1998 | Troy | Simbaya xx | dark brown | |
| Sidekick | Gelding | 1990 | Schatten Spiel | Sunny Sovereign xx | chestnut | |
| Side Latch xx | Mare | 1951 | Kentyside xx | Latch String xx | Unknown | |
| Sidney | Mare | 1997 | Schubert | Lady Of The Moon xx | gray | |
| Sidra | Mare | 1977 | Hexenmeister | Staven | dark brown/black | |
| Sidville Girl xx | Mare | Unknown | Unknown | |||
| Siefert | Stallion | 1988 | Sigurd | Jamaica | chestnut | |
| Sieg | Stallion | 1989 | Unkenruf *Pg*E* | Strategie *E* | bay | |
| Siegbert | Stallion | 1968 | Garamond | Siegburg | chestnut | |
| Siegburg | Mare | Fol Ami xx | Sylva | bay | ||
| Siegel | Stallion | 1961 | Handelsherr | Siegburg | dark bay | |
| Siegen | Gelding | 2000 | Schönfelder *Ps* | Suska | bay | |
| Sieger | Stallion | 1987 | Graditz *E* | Miss Jenann C. xx | dark bay | |
| Siegerland | C | 2005 | Sieg | Sarina | bay (gray) | |
| Sieger Pop | Stallion | 1991 | Carino *E* | Popina xx | dark bay/brown | |
| Siegessonne | Mare | 1981 | Tannenberg *E* | Sieglinde | bay |