- Roderick, King of the Visigoths, -711?1
- Roman Civil War (Rome : 43-31 B.C.)1
- Roman capitals (Lettering)1
- Roman de la rose (Guillaume, de Lorris)1
- Romances, Latin (Medieval and modern)1
- Rosh Hodesh1
- Rosh ha-Shanah--Liturgy1
- Rucellai, Guglielmo de'1
- Rupert, of Deutz, approximately 1075-11291
- Ruralia commoda (Crescenzi, Pietro de')1
- Rustam, Amir-zadeh, Sultan1
- Rāmizah fī ʻilmay al-ʻarūḍ wa-al-qāfiyah (Khazrajī, ʻAbd Allāh ibn ʻUthmān)1
- Saint-Victor (Abbey : Paris, France)1
- Saints musulmans--Biographies--Ouvrages avant 18001
- Sakhāwī, ʻAlī ibn Muḥammad, 1163?-1245. ʻUmdat al-mujīd fī al-naẓm wa-al-tajwīd1
- Salutati, Coluccio, 1331-14061
- Salve Regina (Music)1
- Samarqandī, Muḥammad ibn Yūsuf, d. 1160 or 61. Multaqaṭ1
- Sammelbands1
- San Salvatore al Monte (Monastery : Florence, Italy)1