- Religious calendars--Islam1
- Religious minorities--Legal status, laws, etc.1
- Rent (Islamic law)1
- Rhetoric1
- Rice--Religious aspects--Hinduism1
- Riddles1
- Riddles, Arabic1
- Risālah al-Ḥusaynīyah1
- Rodents--Religious aspects--Islam1
- Roosters1
- Rosh Hodesh--Liturgy1
- Royal houses1
- Russia (Federation)--Dagestan1
- Rīzawī, ʻUthmān Ṣabrī ibn Ismāʻīl, active 19th century. Risālah al-jadīdah fī al-waḍʻ1
- Sabbath--Liturgy1
- Sabzavārī, Hādī ibn Mahdī, b. 1797 or 8. Tālīqāt ʻalá Asrār al-āyāt1
- Sacred books1
- Sacrifice--Hinduism1
- Sajāwandī, Sirāj al-Dīn Muḥammad ibn Muḥammad, active 12th century. Waqf wa-al-ibtidāʼ1
- Saladin, Sultan of Egypt and Syria, 1137-11931