Author
- John Dennis1
- John Fortescue1
- John Sergeant1
- Josef ibn Tabul1
- Joseph ben Abraham Gikatilla1
- Joshua ibn Shuaib1
- José Pellicer1
- Juan López Ossorio1
- Juan Valenzuela Velázquez1
- Juan de Mongaston1
- Judah Rosanes1
- Kalidasa1
- Kalim Kashani1
- Kalonymus ben Kalonymus1
- Kanada1
- Karakaşzade Ömer1
- Keśavasvāmin1
- Khalīl Ibn Walī1
- Khaqani1
- Khvājah Muḥammad Pārsā1