Author
- Hillel Lichtenstein1
- Hirsh Kunrat1
- Immanuel Bonfils1
- Immanuel Tremellius1
- Isaac Aboab1
- Isaac Lopez1
- Isaac Sasportas1
- Isaac of Troki1
- Isaak Aaron Ettinger1
- Issachar ben Mordecai ibn Susan1
- Jacob Jacobke Heilprin1
- Jacob ben Asher1
- Jacob ben Jacob, ha-Kohen, -approximately 12701
- Jacob ben Machir ibn Tibbon1
- Jakob Reifmann1
- Jewish prayers1
- Joseph Angelet1
- Joseph ben Gorion1
- Joshua Benzion Segre1
- Judah Leib Ben Zeev1