Author
- Israel Yaakov Algazi1
- Jacob Israel Karmi1
- Jacob Meyer1
- Jacob ben Machir ibn Tibbon1
- Jacob ben Reuben ibn Zur1
- Jalal al-Din al-Suyuti1
- Jawād ibn Saʻd Jawād al-Baghdādī1
- Jewish Community of Amsterdam, Netherlands1
- Jewish Community of Padua, Italy1
- Jewish Community of Pitigliano, Italy1
- Jewish community of unidentified city, Italy1
- Jews1
- Joseph Yitzchak Hakohen Poppers1
- Joseph ben Ephraim Karo1
- Joshua ben Israel Benveniste1
- Judah Leib Prossnitz1
- Judah Rosanes1
- Kamal al-Din ibn al-Humam1
- Kimhi Yitzhak ben Mordekhai1
- Leon Ghirone1