Author
- Isaac Luria1
- Isaac Sasportas1
- Isaac of Troki1
- Israel Alnaqua1
- Israel Yaakov Algazi1
- Jacob Meyer1
- Jacob ben Reuben ibn Zur1
- Jaghmini1
- Jai Singh II1
- Jalal al-Din Mohammad Tabrizi1
- Jaʻfar Astarābādī1
- Jean-Baptiste Hauchamps1
- Jews1
- Juan Vicente de Güemes, 2nd Count of Revillagigedo1
- Juana I of Castile1
- Judah Leib Prossnitz1
- Judah Rosanes1
- Kalonymus ben Kalonymus1
- Karaçelebizade Abdülaziz1
- Khalīfah Shāh Muḥammad Kanawjī1