- Philosophy, Ancient4
- Political ethics4
- Precious stones4
- Predictive astrology4
- Public law (Islamic law)4
- Quḍāʻī, Muḥammad ibn Salāmah, -10624
- Qūshjī, ʻAlī ibn Muḥammad, -1474 or 1475. Sharḥ al-Waḍʻīyah4
- Riddles, Arabic4
- Rāfiʻī, ʻAbd al-Karīm ibn Muḥammad, 1162-1226. ʻAzīz ʻalá al-Wajīz4
- Saudi Arabia--Hejaz4
- Sharḥ Īsāghūjī (Kātī, Ḥusām al-Dīn al-Ḥasan)4
- Shāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)4
- Sin--Islam4
- Sufi poetry, Arabic4
- Sullam (Akhḍarī, ʻAbd al-Raḥmān ibn Muḥammad)4
- Symbolism of numbers4
- Sīrat Rasūl Allāh (Ibn Hishām, ʻAbd al-Malik)4
- Tables (Data)4
- Tadhkirah fī ʻilm al-hayʼah (Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad)4
- Taxation (Islamic law)4