- Rice--Religious aspects2
- Risālah fī al-tawḥīd (Jaʻbarī, Arslān ibn Yaʻqūb)2
- Rivers2
- Riyāḍ al-ṣāliḥīn (Nawawī)2
- Roderick, King of the Visigoths, -711?2
- Romances, Arabic2
- Romances, Latin (Medieval and modern)2
- Romania--Transylvania2
- Roosters2
- Rosh Hodesh--Liturgy2
- Rosh ha-Shanah2
- Russia2
- Russia (Federation)2
- Rāgamālā painting2
- Rāsa literature2
- Rāzī, Fakhr al-Dīn Muḥammad ibn ʻUmar, 1149 or 1150-1210. Lubāb al-Ishārāt2
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798- Nibrās al-hudá2
- Sakhāwī, ʻAlī ibn Muḥammad, 1163?-1245. ʻUmdat al-mujīd fī al-naẓm wa-al-tajwīd2
- Saladin, Sultan of Egypt and Syria, 1137-11932
- Salt industry and trade--Law and legislation2