Author
- Julian of Toledo2
- Julianus Pomerius2
- Julius II2
- Julius III1
- Jullien Gervais1
- Junayd ibn Sandal Baghdādī1
- Justin2
- Justinian I22
- Juvenal8
- Jérôme Lalande2
- Jñānamṛtapata1
- Jñānendrasarasvatī15
- Jörg Muelich1
- Jānakīnātha Bhaṭṭācārya7
- Jāwushzādah, Ibrāhīm ibn Muḥammad, d. 1640 or 11
- Ka'b bin Zuhayr1
- Kabbāshī, Aḥmad1
- Kalb Ḥusayn ibn Faz̤l ʻAlī Tabrīzī1
- Kalidasa43
- Kalim Kashani1