- Rhetoric1
- Rudra (Hindu deity)1
- Rules1
- Rupert, of Deutz, approximately 1075-11291
- Rāmizah fī ʻilmay al-ʻarūḍ wa-al-qāfiyah (Khazrajī, ʻAbd Allāh ibn ʻUthmān)1
- Rāsa literature1
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798- Nibrās al-hudá1
- Salvation1
- Samarasiṃha. Tājakatantrasāra1
- Samarqandī, Abū al-Qāsim ibn Abī Bakr, active 15th century. Risālah al-Samarqandīyah fī al-istiʻārāt1
- Sammelbands1
- Sandhi1
- Sanskrit language--Gender1
- Sanskrit language--Suffixes and prefixes1
- Sanskrit language--Versification1
- Schools1
- Science1
- Sermons, Early Christian1
- Shams Maghribī, Muḥammad Shīrīn, 1349?-1406 or 1407. Jām-i jahānʹnumā1
- Sharḥ al-Wiqāyah (Maḥbūbī, ʻUbayd Allāh ibn Masʻūd)1