Author
- Reza-Qoli Khan Hedayat1
- Richard de Fournival1
- Rifāʾī, Muḥammad ibn ʻAlwān1
- Robert Ashley1
- Robert Cooke1
- Robert de Saint-Martin1
- Roberto Caracciolo1
- Rodolfo Pio da Carpi1
- Roman Catholic Archdiocese of Mainz1
- Roman Catholic Diocese of Zaragoza1
- Rucidattamiśra1
- Rudradeva1
- Rudradhara1
- Rukn al-Dīn ʻĀshiq1
- Rukn ibn Sharaf al-Dīn Āmulī1
- Rutilius Taurus Aemilianus Palladius1
- Ruzbihan Baqli1
- Rāghava1
- Rāghavendra1
- Rājiḥ ibn Ismāʻīl Ḥillī1