Author
- Rukn al-Dīn ʻĀshiq1
- Rukn ibn Sharaf al-Dīn Āmulī1
- Rutilius Taurus Aemilianus Palladius1
- Ruzbihan Baqli1
- Rājiḥ ibn Ismāʻīl Ḥillī1
- Rāmacandra1
- Rūmī, Bāyazīd ibn Yūsuf, d. 1494 or 51
- Saadia Gaon1
- Sabit Alaeddin Ali1
- Sadullah Halveti1
- Sadānanda Yogīndra1
- Sadīd al-Dīn al-Kashgharī1
- Safi Al-Din Al-Hilli Altaie1
- Safi al-Din al-Qushashi1
- Sagi Nehor Masʻud1
- Sakhāwī, Muḥammad ibn Muḥammad1
- Salomon ibn Parhon1
- Salāmah ibn Ismāʻīl Ibn Jamāʻah1
- Samarqandī, Muḥammad ibn Maḥmūd1
- Sami Abdülkerim1