- Roman de la rose (Guillaume, de Lorris)1
- Roman law--Interpretation and construction1
- Rosary1
- Rules1
- Rupert, of Deutz, approximately 1075-11291
- Ruralia commoda (Crescenzi, Pietro de')1
- Râmâyaṇa (Old Javanese kakawin)1
- Sacraments--Catholic Church1
- Sacred music1
- Sacred works1
- Saint-Martin de Plaimpied (Augustinian Monastery)1
- Saint-Victor (Abbey : Paris, France)1
- Sakkākī, Yūsuf ibn Abī Bakr, 1160- Miftāḥ al-ʻulūm1
- Salvation1
- Samaritans1
- Samson (Biblical judge)1
- Sancho Garcés I, King of Navarre, -9251
- Sancho II, King of Castile and Leon, 1037 or 1038-10721
- Sarmiento, Pero. Sentencia-Estatuto1
- Satire, Latin1