- Sharḥ al-Qūshjī ʻalá Tajrīd al-ʻaqāʼid lil-Ṭūsī (Qūshjī, ʻAlī ibn Muḥammad)1
- Sharḥ al-Risālah al-Ḥusaynīyah1
- Sharḥ al-Wiqāyah (Maḥbūbī, ʻUbayd Allāh ibn Masʻūd)1
- Sharḥ al-ʻAqāʼid al-Nasafīyah (Taftāzānī, Masʻūd ibn ʻUmar)1
- Sharḥ dībājat al-Miṣbāḥ1
- Shaykhī--Doctrines1
- Shihāb al-Dīn Aḥmad ibn Maḥmūd. Farāʼiḍ Shihāb al-Dīn1
- Shirwānī, Masʻūd ibn Ḥusayn, -1499 or 1500. Sharḥ ʻalá Risālah fī ādāb al-baḥth1
- Shirwānī, Muḥammad al-Amīn ibn Ṣadr al-Dīn, -1626 or 1627. Jihat al-waḥdah1
- Shāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Shīrāzī, Shukr Allāh ibn Qāsim. Mufīd al-Mukhtaṣar1
- Shīʻah1
- Sibṭ al-Māridīnī, Badr al-Dīn Muḥammad ibn Muḥammad, 1423- Risālah al-fatḥīyah1
- Siddhāntalakṣaṇa (Gaṅgeśa)1
- Siva (Hindu deity)1
- Substance (Philosophy)1
- Sujāʻī, Aḥmad ibn Aḥmad, -1783? Jawāhir al-muntaẓimāt fi ʻUqūd al-maqūlāt1
- Sujāʻī, Aḥmad ibn Aḥmad, -1783? ʻUqūd al-maqūlāt1
- Sullam al-ʻulūm (Bahārī, Muḥibb Allāh ibn ʻAbd al-Shakūr)1
- Sājaqlīzādah, Muḥammad ibn Abī Bakr, -1737. Tartīb al-ʻulūm1