Author
- Sancho IV of León and Castile1
- Scipione Bargagli1
- Seneca1
- Shaykh ʻAbd Allāh1
- Sibawayh1
- Sidrac1
- Silesia1
- Simon Köferl1
- Siraj ud-Din Muhammad ibn Abd ur-Rashid Sajawandi1
- Stephen Batman1
- Sufi Ahmad1
- Taqi al-Din al-Subki1
- Theodore of Mopsuestia1
- Theodoret1
- Thomas Achelley1
- Thomas More1
- Thomas of Cantimpré1
- Thomas à Kempis1
- Tibullus1
- Timoteo Bottoni1