Parentless Concepts
- sculpture
- Signor Carlo
- Signor Carnevali
- Signor dottor Morelli
- Signor Gantelmo
- Signor Lombardi
- silent film
- Silesia
- Silva Figueroa, García de
- Simon
- Simone il Salisburghese
- Simplicius of Cilicia
- Sionita, Gabriel
- Sirach
- Sirmond, Jacques
- Sirtori
- Slade, Samuel
- Slavata, Joachim von
- Smend, Oswalld
- Smetius, Johannes
- snd
- Snellius, Willebrord
- Soběslav
- software
- Solnerus