Author
- Ismāʻīl ibn Muḥammad Māzandarānī1
- Ismāʻīl Ḥaqqī Āsikjīʹzādah1
- Izz al-Din ibn 'Abd al-Salam1
- Izzatullah Bengali1
- Jahangir Mirza Qajar1
- Jakob Eduard Polak1
- Jamāl al-Dīn Khvānsārī1
- Jamālī Ardistani1
- Jawad al-Amili1
- Jayyānī, al-Ḥusayn ibn Muḥammad, 1035-1105?1
- Jaʻfar ibn al-Ḥusayn Shūshtarī1
- Jiang Zhi1
- John of Glastonbury1
- Kalim Kashani1
- Kamal Khujandi1
- Kamal al-Din ibn al-Humam1
- Kamāl al-Dīn ibn Āsāyish Shirwānī1
- Kamāl aldaayn albakry1
- Kara Fazlî1
- Karaçelebizade Abdülaziz1