Parentless Concepts
- short film
- Secondary School
- Secondary School higher sec.
- Secondary School lower sec.
- Seljuk
- Seneca
- Sennyey, Pongrác
- Serarius, Nicolaus
- series
- Serres, Jean de
- Severian of Gabala
- Severinus Binius, Concilia generalia
- Severinus Noricus
- Severus of Antioch
- Sextus Empiricus
- Seyfried, Johann
- Sgambati, Scipione
- Siam
- Sichuan
- Sicily
- Sigismund Báthory
- Sigismund III Vasa
- Sigismundus Aschenbrenner
- Signor Annoldino