Author
- Rodolfo Pio da Carpi1
- Roman Catholic Archdiocese of Mainz1
- Rucidattamiśra1
- Rukn al-Dīn ʻĀshiq1
- Rukn ibn Sharaf al-Dīn Āmulī1
- Rutilius Taurus Aemilianus Palladius1
- Ruzbihan Baqli1
- Rājiḥ ibn Ismāʻīl Ḥillī1
- Rāmacandra1
- Saadia Gaon1
- Sabit Alaeddin Ali1
- Sadr al-Din al-Qunawi1
- 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