Author
- Ravana1
- Raymond of Penyafort1
- Raḥabi Daṿid ben Yeḥezkel1
- Refael Mordekhai Malki1
- Refaʼel Abulafia1
- Republic of Venice1
- Revanî1
- Reynoldus Romanus1
- Rifāʾī, Muḥammad ibn ʻAlwān1
- Risālah al-dāmighah lil-fāsiq1
- Risālah al-dāmighah lil-fāsiq ... [etc.1
- Robert Ashley1
- Robert Cooke1
- Robert de Saint-Martin1
- Roberto Caracciolo1
- Rodolfo Pio da Carpi1
- Rucidattamiśra1
- Rukn al-Dīn ʻĀshiq1
- Rukn ibn Sharaf al-Dīn Āmulī1
- Rutilius Taurus Aemilianus Palladius1