Author
- Jonas King1
- Joseph Albaradani1
- Joseph ben Ephraim Karo1
- Joseph ben Gorion1
- Josephus1
- Joshua ibn Shuaib1
- Juana I of Castile1
- Junayd ibn Sandal Baghdādī1
- Jāwushzādah, Ibrāhīm ibn Muḥammad, d. 1640 or 11
- Ka'b bin Zuhayr1
- Kabbāshī, Aḥmad1
- Kadri, Ali1
- Kahvecizâde, Ahmed bin Hüseyin1
- Kalb Ḥusayn ibn Faz̤l ʻAlī Tabrīzī1
- Kalim Kashani1
- Kalāʼī, Muḥammad ibn Sharaf, d. 13751
- Kamal ad-Din Bina'i1
- Kamal al-Din al-Ghazzi1
- Kamāl al-Dīn ibn Āsāyish Shirwānī1
- Kamāl al-Dīn Ḥusayn ibn Ḥasan Khvārazmī1