Author
- Pseudo-Cicero1
- Pseudo-Eusebius of Cremona1
- Pseudo-Jerome1
- Qaṣabī, Muḥammad ʻUmar1
- Qāḍī Zāda al-Rūmī1
- Rashid-al-Din Hamadani1
- Remigio dei Girolami1
- Reynoldus Romanus1
- Richard Nykke1
- Richard of Saint Victor1
- Robert de Saint-Martin1
- Rui de Pina1
- Ruzbihan Baqli1
- Saadi1
- Safi Al-Din Al-Hilli Altaie1
- Sallust1
- Samuel Marochitanus1
- Saʻdī, ʻAbd Allāh, 14th cent1
- Saʻīd Najm al-Dīn ʻAjamī1
- Sextus Empiricus1