- Shirwānī, Masʻūd ibn Ḥusayn, -1499 or 1500. Sharḥ Risālah fī ādāb al-baḥth1
- Shirwānī, Muḥammad al-Amīn ibn Ṣadr al-Dīn, -1626 or 1627. Jihat al-waḥdah1
- Shādhilī, Abū al-Ḥasan ʻAlī ibn ʻAbd Allāh, approximately 1196-12581
- Shādhilī, Abū al-Ḥasan ʻAlī ibn ʻAbd Allāh, approximately 1196-1258. Ḥizb al-barr1
- Shāfiʻī, Muḥammad ibn Aḥmad, 1436 or 1437-1499 or 1500. Tuḥfat al-ʻibād bi-mā yajibu min al-iʻtiqād1
- Sibṭ al-Māridīnī, Badr al-Dīn Muḥammad ibn Muḥammad, 1423- Risālah fī bayān al-ʻamal bi-al-ālah allatī tusammá bi-al-Rubʻ al-mujayyab1
- Silver tooled bindings1
- Sin--Christianity1
- Sin--Islam1
- Sittūn masʼalah fī al-fiqh (Zāhid, Aḥmad ibn Muḥammad)1
- Solar system1
- Soul--Islam1
- Southern Arabia1
- Spain1
- Specimens1
- Spices1
- Spinning1
- Spirituality--Christianity1
- Subkī, Taqī al-Dīn ʻAlī ibn ʻAbd al-Kāfī, 1284-1355. Tāʼīiyah1
- Sudan--Kordofan (Province)1