- Ramadan1
- Ramlī, Aḥmad ibn Aḥmad, -1563 or 1564. Shurūṭ al-maʼmūm wa-al-imām1
- Rawḍat al-nāẓir wa-jannat al-munāẓir (Ibn Qudāmah, Muwaffaq al-Dīn ʻAbd Allāh ibn Aḥmad)1
- Recusants1
- Registers (Lists)1
- Regula (Benedict, Saint, Abbot of Monte Cassino)1
- Relations1
- Religion and ethics1
- Religion--Philosophy1
- Religions1
- Religious drama, French1
- Religious life1
- Religious literature, Italian1
- Rent (Islamic law)1
- Requesens, Antonio de'1
- Requesens, Berengario de'1
- Requesens, Bernardo de'1
- Requesens, Giuseppe de'1
- Resurrection (Islam)1
- Rhetoric, Ancient--Study and teaching1