- Rashi, 1040-11051
- Rawḍat al-nāẓir wa-jannat al-munāẓir (Ibn Qudāmah, Muwaffaq al-Dīn ʻAbd Allāh ibn Aḥmad)1
- Regula (Benedict, Saint, Abbot of Monte Cassino)1
- Reproduction1
- Revelation on Sinai1
- Rhetoric1
- Romances1
- Russia (Federation)--Tarki1
- SS. Trinità e S. Michele Arcangelo di Brondolo (Monastery)1
- Samarqandī, Muḥammad ibn Ashraf, active 13th century. Ṣaḥāʼif al-ilāhīyah1
- Samarqandī, Muḥammad ibn Yūsuf, -1160 or 1161. Fiqh al-nāfiʻ1
- Science, Medieval1
- Sefer zemanim (Maimonides, Moses)1
- Sententiarum libri IV (Peter Lombard, Bishop of Paris)1
- Sexual ethics--Religious aspects1
- Sharḥ Shamsīyah (Quṭb al-Taḥtānī, Muḥammad ibn Muḥammad)1
- Shavuot--Liturgy1
- Shaybānī, Muḥammad ibn al-Ḥasan, approximately 750-804 or 805. Jāmiʻ al-kabīr.--Abridgment1
- Shaybānī, Muḥammad ibn al-ḥasan, approximately 750-804 or 805. Jāmiʻ al-ṣaghīr1
- Shādhilī, Abū al-Ḥasan ʻAlī ibn ʻAbd Allāh, approximately 1196-12581