- Ragas1
- Ramiro II, King of Leon, -9511
- Ramlī, Aḥmad ibn Aḥmad, -1563 or 1564. Shurūṭ al-maʼmūm wa-al-imām1
- Ramlī, Muḥammad ibn Aḥmad, 1513-1596. Nihāyat al-muḥtāj ilá sharḥ al-Minhāj1
- Ramlī, Muḥammad ibn Aḥmad, 1513-1596. Sharḥ al-Sittīn masʼalah1
- Rashi, 1040-11051
- Rasāʼil (Ikhwān al-Ṣafāʼ)1
- Real property tax--Law and legislation1
- Reasoning1
- Rebellion (Turkey : 1703)1
- Regiomontanus, Joannes, 1436-1476. Calendarium1
- Religion and ethics1
- Religion--Philosophy1
- Religious calendars--Islam1
- Religious drama, French1
- Religious ethics1
- Religious literature, Italian1
- Religious minorities--Legal status, laws, etc.1
- Religious poetry1
- Religious poetry, Italian1