- Ressano, Giovanni1
- Resurrection (Islam)5
- Resurrection of Jesus Christ1
- Revolutions1
- Rhetoric7
- Rhetoric (Aristotle)1
- Rhetoric--Study and teaching1
- Rhetorica ad Herennium1
- Riario, Raffaello, 1451-15211
- Ribera, Teresa de1
- Ricciardi, Taddeo1
- Richard III, King of England, 1452-14851
- Riddles, Persian1
- Right of property (Jewish law)1
- Ripley, George, -1490?1
- Risaliti, Francesco6
- Risālah al-waḍʻīyah (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Rites and ceremonies4
- Rithmomachia (Game)1
- Rituals1