- Remboîtage1
- Revelation--Islam1
- Riddles1
- Riddles, Persian1
- Rodents--Religious aspects--Islam1
- Romania1
- Roosters1
- Russia (Federation)--Tarki1
- Rāfiʻī, ʻAbd al-Karīm ibn Muḥammad, 1162-1226. Muḥarrar1
- Rāzī, Fakhr al-Dīn Muḥammad ibn ʻUmar, 1149 or 1150-1210. Lubāb al-Ishārāt1
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798- Nibrās al-hudá1
- Saffron crocus1
- Sajāwandī, Sirāj al-Dīn Muḥammad ibn Muḥammad, active 12th century. Waqf wa-al-ibtidāʼ1
- Sajʻ1
- Sakhāwī, Muḥammad ibn Muḥammad. Durrah al-bahīyah fī al-masāʼil al-fiqhīyah1
- Samaritan Aramaic language1
- Samaritans--Liturgy1
- Samarqandī, Abū al-Qāsim ibn Abī Bakr, active 15th century. Risālah al-Samarqandīyah fī al-istiʻarāt1
- Samarqandī, Abū al-Qāsim ibn Abī Bakr, active 15th century. Sharḥ al-Waḍʻīyah1
- Samtī, Yūsuf ibn Khālid, -805 or 8061