Author
- Rucidattamiśra1
- Rukn al-Dīn ʻĀshiq1
- Rukn ibn Sharaf al-Dīn Āmulī1
- Rutgerus Hartman1
- Rutilius Taurus Aemilianus Palladius1
- Ruzbihan Baqli1
- Rājiḥ ibn Ismāʻīl Ḥillī1
- Rāmacandra1
- Rūmī, Bāyazīd ibn Yūsuf, d. 1494 or 51
- Rūmī, Ibrāhīm ibn ʻUmar1
- Sabit Alaeddin Ali1
- Sadullah Halveti1
- Sadānanda Yogīndra1
- Safi al-Din al-Qushashi1
- Sagi Nehor Masʻud1
- Saint Catherine Monastery1
- Sakhāwī, Muḥammad ibn Muḥammad1
- Sakkāʼī, ʻAbd al-Kāẓim ibn ʻAbd al-ʻAlī1
- Salomon Trismosin1
- Salomon ibn Parhon1