Author
- Jewish Community of Padua, Italy1
- Jews1
- John Chrysostom1
- Joseph Yitzchak Hakohen Poppers1
- Josephus1
- Juan Félix de Rújula1
- Juan Vicente de Güemes, 2nd Count of Revillagigedo1
- Juana I of Castile1
- Judah Leib Prossnitz1
- Judah Rosanes1
- Kahvecizâde, Ahmed bin Hüseyin1
- Kalonymus ben Kalonymus1
- Kamal al-Din al-Ghazzi1
- Kamāl aldaayn albakry1
- Kanjāwī, Jibrīl ibn ḥasan, 1351 or 21
- Karaçelebizade Abdülaziz1
- Khalaf Barbarī1
- Khalīfah Shāh Muḥammad Kanawjī1
- Khalīl ibn Muḥammad Fattāl1
- Khayālī Bukharāʼī1