- Qurʼan. Sūrat al-Nūr1
- Qurʼan. Sūrat al-Rūm1
- Qurʼan. Sūrat al-Sajdah1
- Qurʼan. Sūrat al-Shuʻarāʼ1
- Qurʼan. Sūrat al-Shūrá1
- Qurʼan. Sūrat al-Ṣaff1
- Quṭb al-Shīrāzī, Maḥmūd ibn Masʻūd, 1236 or 1237-1310 or 1311. Sharḥ ʻalá al-Risālah al-Shamsīyah1
- Rainbows1
- Ramlī, Aḥmad ibn Aḥmad, -1563 or 1564. Shurūṭ al-maʼmūm wa-al-imām1
- Rasāʼil (Ikhwān al-Ṣafāʼ)1
- Rifāʻī, Aḥmad ibn ʻAlī, 1106?-11821
- Rifāʻīyah1
- Risālah fī al-tawḥīd (Jaʻbarī, Arslān ibn Yaʻqūb)1
- Russia (Federation)--Saint Petersburg1
- Sales (Islamic law)1
- Samarqandī, Abū al-Qāsim ibn Abī Bakr, active 15th century. Risālah al-Samarqandīyah fī al-istiʻārāt1
- Sanūsī, Muḥammad ibn Yūsuf, approximately 1427-approximately 1490. Umm al-barāhīn1
- Satellites--Phases1
- Saudi Arabia--Zamzam Well1
- Shams Maghribī, Muḥammad Shīrīn, 1349?-1406 or 1407. Jām-i jahānʹnumā1