Author
- Simon Köferl1
- Simon de Lenis1
- Simone d' Angelo1
- Sipahizade Mehmet bin Ali1
- Sir Edward Dering, 1st Baronet1
- Sir Edward Dering, 2nd Baronet1
- Siraj al-Din al-Bulqini1
- Sirājī, Shihāb al-Dīn1
- Society of Jesus1
- Solomon Ben Judah Gaon1
- Solomon Nissim Algazi1
- Solomon ben Abraham Laniado1
- Solomon ibn Verga1
- Somadaivajña (Son of Rudrabhaṭṭa)1
- Somayāji Rāmacandra1
- Somdev1
- Spanish Council of State1
- Srinatha1
- Stefano Bramieri1
- Stephan Brechtel1