Author
- Roger Bigod, 2nd Earl of Norfolk1
- Roger Waltham1
- Rogerius1
- Roman Catholic Archdiocese of Reims1
- Roman Rota1
- Rudulphus Bollartus1
- Rui de Pina1
- Saint Catherine Monastery1
- Salomon Trismosin1
- Scipione Bargagli1
- Sebastião Lopes1
- Seigan Majima1
- Seneca the Elder1
- Sensatus1
- Serapion the Younger1
- Sextus Empiricus1
- Sextus the Pythagorean1
- Shelomo Suleiman Al-Sanjary1
- Shem Tov ben Abraham ibn Gaon1
- Sidonius Apollinaris1