Author
- Isaac Aboab of Castile1
- Isaac Albalag1
- Isaac Israeli ben Joseph1
- Isaac Lattes1
- Isaac ibn Ezra1
- Isaac ibn Ghiyyat1
- Isaac of Troki1
- Isaac the Blind1
- Isaak ben Meïr from Düren1
- Israel Alnaqua1
- Israel Yaakov Algazi1
- Jacob Berab1
- Jacob HaLevi of Marvège1
- Jacob Israel Karmi1
- Jacob Meyer1
- Jacob Saphir1
- Jacob ben David ben Yom Tov1
- Jacob ben Jacob, ha-Kohen, -approximately 12701
- Jacob ben Reuben ibn Zur1
- Jacob ibn Habib1