- Ricciardi, Taddeo1
- Riddles, Arabic1
- Risālah (Ibn Abī Zayd al-Qayrawānī, ʻAbd Allāh ibn ʻAbd al-Raḥmān)1
- Rites and ceremonies1
- Rithmomachia (Game)1
- Rodriguez, Ysabel1
- Rodríguez, Sebastián, 1896-19681
- Roman Civil War (Rome : 43-31 B.C.)1
- Romances, Italian1
- Romans--Religion1
- Rome (Italy). Maestri delle Strade1
- Ropshitser, Naphtali Ẓevi, 1760-18271
- Rucellai, Cosimo, 1495-15191
- Rāgamālā painting1
- Sacred books1
- Saint-Geoire-en-Valdaine (France)1
- Saints1
- Salat1
- Salt industry and trade--Law and legislation1
- Salt--Taxation1