Author
- Sidrac1
- Sigebert of Gembloux1
- Sigmund Hintterkircher1
- Sikandar Āmulī1
- Simchah ben Abraham Calimani1
- Simeon Kara1
- Simeon Labi1
- Simon Bredon1
- Simon of Cremona1
- Simone Gondi1
- Simone d' Angelo1
- Sinan Efendi1
- Sinan Paşa1
- Sir Edward Dering, 1st Baronet1
- Sir Edward Dering, 2nd Baronet1
- Sir Thomas Frankland, 2nd Baronet1
- Sixtus IV1
- Society of Jesus1
- Society of Saint Anne (Malogoszcz, Poland)1
- Solomon Dubno1