Author
- Jacob Berab1
- Jacob Israel Karmi1
- Jacob Jacobke Heilprin1
- Jacob Meyer1
- Jacob ben David ben Yom Tov1
- Jacob ben Machir ibn Tibbon1
- Jacob ben Reuben ibn Zur1
- Jacob ibn Habib1
- Jewish prayers1
- Joachim Heinrich Campe1
- Johannes de Sacrobosco1
- Jonathan Eybeschutz1
- Joseph Angelet1
- Joseph Nasi1
- Joseph ben Judah ibn Aknin1
- Joseph ben Moses Sarfati1
- Joshua ben Israel Benveniste1
- Joshua ibn Shuaib1
- Judah Hadassi1
- Judah Leib Ben Zeev1