Author
- Jamshīd al-Kāshī1
- Jamāl al-Dīn Aḥmad ibn Muḥammad Ẓāhirī1
- Jamālī Ardistani1
- Jawad al-Amili1
- Jayyānī, al-Ḥusayn ibn Muḥammad, 1035-1105?1
- Jazūlī, Yaḥyá ibn Mūsá1
- Jaʻfar Vāʻiẓ1
- Jaʻfar ibn al-Ḥusayn Shūshtarī1
- Jiang Zhi1
- John Gower1
- John of Genoa1
- John of Glastonbury1
- Juan Páez de Castro1
- Junayd ibn Sandal Baghdādī1
- Jāwushzādah, Ibrāhīm ibn Muḥammad, d. 1640 or 11
- Ka'b bin Zuhayr1
- Kabbāshī, Aḥmad1
- Kalb Ḥusayn ibn Faz̤l ʻAlī Tabrīzī1
- Kalim Kashani1
- Kalāʼī, Muḥammad ibn Sharaf, d. 13751