- Romances, Turkish1
- Rome (Italy). Maestri delle Strade1
- Roosters1
- Rosh Hodesh--Liturgy1
- Rossi, Azariah ben Moses dei, approximately 1511-approximately 1578. Tsedeḳ ʻOlamim1
- Royal houses1
- Royal supremacy (Church of England)1
- Rucellai, Cosimo, 1495-15191
- Rupert, of Deutz, approximately 1075-11291
- Ruralia commoda (Crescenzi, Pietro de')1
- Russia leather bindings1
- Rāghib, Muḥammad, 1698 or 1699-1762 or 17631
- Rāma (Hindu deity)1
- Rāmāyaṇa (Vālmīki)1
- Rīzawī, ʻUthmān Ṣabrī ibn Ismāʻīl, active 19th century. Risālah al-jadīdah fī al-waḍʻ1
- Rūmī, ʻAbd Allāh ibn ʻAbd Allāh, d. 15791
- Sabbath (Jewish law)1
- Sabzavārī, Hādī ibn Mahdī, b. 1797 or 8. Tālīqāt ʻalá Asrār al-āyāt1
- Sacramentaries1
- Sacred books1