- Richard III, King of England, 1452-14851
- Riddles, Indic1
- Riddles, Latin1
- Ridolfi, Angiolo1
- Rifāʻīyah1
- Right of property (Islamic law)1
- Ripley, George, -1490?1
- Risaliti, Lena1
- Risālah (Ibn Abī Zayd al-Qayrawānī, ʻAbd Allāh ibn ʻAbd al-Raḥmān)1
- Risālah al-Ḥusaynīyah1
- Rites and ceremonies in the Bible1
- Rithmomachia (Game)1
- Rituals (Liturgical books)1
- Riz̤ā-ʼi ʻAbbāsī, Āqā, approximately 1570-1635?1
- Robert, King of Naples, approximately 1275-13431
- Robert, William1
- Rochefort Demoulin, Louis1
- Rodents--Religious aspects--Islam1
- Rodriguez, Antonio, active 15911
- Rodriguez, Ysabel1