- Shīʻah--Customs and practices1
- Sibṭ al-Māridīnī, Badr al-Dīn Muḥammad ibn Muḥammad, 1423- Iẓhār al-sirr al-mawḍūʻ fī al-ʻamal bi-al-rubʻ al-maqṭūʻ1
- Siwāsī, Muṣṭafá ibn Abī Bakr, d. 1824 or 5. Mafātīḥ al-durrīyah fī ithbāt al-qawānīn al-Darīyah1
- Smoking (Islamic law)1
- Social medicine1
- Soul--Islam1
- Staffs (Sticks, canes, etc.)--Religious aspects--Islam1
- Sufi music1
- Sullam (Akhḍarī, ʻAbd al-Raḥmān ibn Muḥammad)1
- Sullam al-ʻulūm (Bahārī, Muḥibb Allāh ibn ʻAbd al-Shakūr)1
- Sunna1
- Suyūṭī, 1445-1505. Farīdah fī al-naḥw wa-al-taṣrīf wa-al-khaṭṭ1
- Symbolism1
- Syria--Aʻzāz1
- Syria--Dūmā1
- Syria--Ṣāliḥīyah1
- Tables (Data)1
- Tadhkirah fī ʻilm al-hayʼah (Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad)1
- Taftazānī, Masʻūd ibn ʻUmar 1322-1389? Sharḥ al-Mukhtaṣar1
- Taftāzānī, Masʻūd ibn ʻUmar, 1322-1389? Talwīḥ ilá kashf ḥaqāʼiq al-Tanqīḥ1