- Strozzi, Niccolò1
- Sufi literature1
- Sufi poetry, Arabic1
- Sufis--Biography1
- Sufism--Customs and practices1
- Sunna1
- Surgery1
- Surgical instruments and apparatus1
- Sveti Nikola (Abbey : Šibenik, Croatia)1
- Symbolism1
- Taftāzānī, Masʻūd ibn ʻUmar, 1322-1389? Talwīḥ ilá kashf ḥaqāʼiq al-Tanqīḥ1
- Tahdhīb al-Kamāl fī asmāʼ al-rijāl (Mizzī, Yūsuf ibn al-Zakī ʻAbd al-Raḥmān)1
- Talismans1
- Talkhīṣ aʻmāl al-ḥisāb (Ibn al-Bannāʼ, Aḥmad ibn Muḥammad)1
- Tancredini, Giovanni1
- Tancredini, Lorenza1
- Tavener, William, active 14501
- Taviani, Alamanno1
- Tax collection1
- Textile industry1