- Seglerin
- Sendernixe, Hann
- Senta
- Sezuan (of: Blue Horse Zack – Don Schufro)
- Shadow KWG, CH (of: Royal GZ – Calando II – Santos)
- Shaila (of: Calando II – Santos – Cinema)
- Shutterfly (of: Silvio I – Forrest – Gardestern I)
- Sibelle de Fromecs, SF (of: Baloubet du Rouet – Gloster – Gotthard)
- Sieglinde, Hann
- Silbersee, ex Hozeville, SF (of: Silver Matal – Quastor – Ouest France)
- Silka (of: Lepanto – Farnese – Aldato)
- Silva
- Silvano (of: Le Mexico)
- Silver Matal, xx (of: Fortino II)
- Silvester (of: Silbersee, ex Hozeville)
- Silvio I (of: Sandro – Gepard)
- Simonette (of: Fantast)
- Singoalla (of: Drabant)
- Sir Donnerhall, OL (of: Sandro Hit – Donnerhall – Feldherr)
- Sir Sandro (of: Sir Donnerhall – Falkland – Pik König)
