- Isḥāq ibn Ibrāhīm Fārābī1
- Isḥāq ibn Yūsuf Ṣardafī1
- Izz al-Din ibn 'Abd al-Salam1
- Jamshīd al-Kāshī1
- Jamāl al-Dīn Aḥmad ibn Muḥammad Ẓāhirī1
- Jawad al-Amili1
- Jayyānī, al-Ḥusayn ibn Muḥammad, 1035-1105?1
- Jazūlī, Yaḥyá ibn Mūsá1
- Jaʻfar Vāʻiẓ1
- Junayd ibn Sandal Baghdādī1
- Jāwushzādah, Ibrāhīm ibn Muḥammad, d. 1640 or 11
- Ka'b bin Zuhayr1
- Kabbāshī, Aḥmad1
- Kalāʼī, Muḥammad ibn Sharaf, d. 13751
- Kamal al-Din al-Ghazzi1
- Kamāl al-Dīn ibn Āsāyish Shirwānī1
- Kamāl aldaayn albakry1
- Kanjāwī, Jibrīl ibn ḥasan, 1351 or 21
- Kaḥḥāl, ʻAlī ibn ʻĪsá, -1038 or 10391
- Khalīl Ibn Walī1