- Qānūn fī al-ṭibb (Avicenna)1
- Qūshjī, ʻAlī ibn Muḥammad, -1474 or 1475. Sharḥ al-Waḍʻīyah3
- Rabīʻ al-abrār (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Raised bands1
- Ramadan1
- Reading1
- Recitations7
- Religions1
- Religious life--Islam9
- Resurrection (Islam)2
- Rhetoric1
- Riddles, Arabic1
- Riddles, Turkish1
- Risālah al-waḍʻīyah (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Rome (Empire)1
- Rāmizah fī ʻilmay al-ʻarūḍ wa-al-qāfiyah (Khazrajī, ʻAbd Allāh ibn ʻUthmān)1
- Rāzī, Fakhr al-Dīn Muḥammad ibn ʻUmar, 1149 or 1150-1210. Lubāb al-Ishārāt1
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798- Nibrās al-hudá1
- Sajāwandī, Sirāj al-Dīn Muḥammad ibn Muḥammad, active 12th century. Waqf wa-al-ibtidāʼ1
- Salat2