- Repentance--Islam1
- Reproduction1
- Revelation--Islam1
- Riddles1
- Rifāʻī, Aḥmad ibn ʻAlī, 1106?-11821
- Rifāʻīyah1
- Right of property (Islamic law)1
- Risālah al-Ḥusaynīyah1
- Rodents--Religious aspects--Islam1
- Romances, Arabic1
- Roosters1
- Russia (Federation)--Tarki1
- Rüstem Paşa Camii (Istanbul, Turkey)1
- Rāfiʻī, ʻAbd al-Karīm ibn Muḥammad, 1162-1226. Muḥarrar1
- Rāfiʻī, ʻAbd al-Karīm ibn Muḥammad, 1162-1226. ʻAzīz ʻalá al-Wajīz1
- Rāgamālā painting1
- Rīzawī, ʻUthmān Ṣabrī ibn Ismāʻīl, active 19th century. Risālah al-jadīdah fī al-waḍʻ1
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798-1873. Ghurar al-farāʼid1
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798-1873. Laʼālī al-muntaẓimah fī ʻilm al-manṭiq wa-al-mīzān1
- Sabzavārī, Hādī ibn Mahdī, b. 1797 or 8. Tālīqāt ʻalá Asrār al-āyāt1