Author
- Sibṭ ibn al-ʻAjamī1
- Sicco Polenton1
- Sidrac1
- Sigebert of Gembloux1
- Sigmund Hintterkircher1
- Simchah ben Abraham Calimani1
- Simeon ben Zemah Duran1
- Simon Bredon1
- Simone Gondi1
- Simone d' Angelo1
- Siraj ud-Din Muhammad ibn Abd ur-Rashid Sajawandi1
- Society of Jesus1
- Society of Saint Anne (Malogoszcz, Poland)1
- Solomon Almoli1
- Solomon Dubno1
- Solomon Nissim Algazi1
- Solomon ben Abraham Laniado1
- Solomon ibn Gabirol1
- Solomon ibn Verga1
- Somadaivajña (Son of Rudrabhaṭṭa)1