Author
- Qusta ibn Luqa1
- Qūsh Aṭası, ʻIṣmat Aḥmad1
- Rabanus Maurus1
- Rabīʻah ibn Muḥammad Maʻmarī1
- Raghib Isfahani1
- Ramaḍān Ḥalāwah1
- Rayḥān Āghā ibn ʻAbd Allāh1
- Refiʻı̂1
- Revanî1
- Richard Rolle1
- Risālah al-dāmighah lil-fāsiq1
- Rumi1
- Ryŏm Chŏng1
- Rājiḥ ibn Ismāʻīl Ḥillī1
- Rūmī, Ibrāhīm ibn ʻUmar1
- Safi al-Din al-Qushashi1
- Sakhāwī, Muḥammad ibn Muḥammad1
- Salih Nasr Allah ibn Sallum Halabi1
- Salāmah ibn Ismāʻīl Ibn Jamāʻah1
- Salīm Mawṣilī1