Author
- Jaʻfar ibn al-Ḥusayn Shūshtarī1
- John Gower1
- John of Genoa1
- John of Glastonbury1
- Juan Páez de Castro1
- Kabbāshī, Aḥmad1
- Kalb Ḥusayn ibn Faz̤l ʻAlī Tabrīzī1
- Kalim Kashani1
- Kamal ad-Din Bina'i1
- Kamal al-Din ibn al-Humam1
- Kamāl al-Dīn ibn Āsāyish Shirwānī1
- Kamāl al-Dīn Ḥusayn ibn Ḥasan Khvārazmī1
- Kara Fazlî1
- Karakaşzade Ömer1
- Karaçelebizade Abdülaziz1
- Karim Khan Kermani1
- Kaygusuz Abdal1
- Kelı̂m-i Eyyûbı̂1
- Khalīl Ibn Walī1
- Khalīl ibn Shāhīn1