Author
- Isḥāq ibn Ibrāhīm Fārābī1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid1
- Jacob Israel Karmi1
- Jacob Meyer1
- Jacob ben Reuben ibn Zur1
- Jaghmini1
- Jai Singh II1
- Jalal al-Din Mohammad Tabrizi1
- Jewish Community of Amsterdam, Netherlands1
- Jewish Community of Padua, Italy1
- Jews1
- Joshua Benzion Segre1
- Judah Leib Prossnitz1
- Judah Rosanes1
- Kalonymus ben Kalonymus1
- Kamal al-Din al-Ghazzi1
- Khalīfah Shāh Muḥammad Kanawjī1
- Khalīl ibn Muḥammad Fattāl1
- Khayālī Bukharāʼī1
- Khiḍr ibn Ilyās Yāyābāshīzādah1