Author
- G. Binyamin Lion1
- Galen1
- Gentile da Foligno1
- Hillel Lichtenstein1
- Hirsh Kunrat1
- Hunayn ibn Ishaq1
- Immanuel Tremellius1
- Isaac Aboab I1
- Isaac Aboab of Castile1
- Isaac Albalag1
- Isaac Israeli ben Joseph1
- Isaac Lattes1
- Isaac Lopez1
- Isaac ben Joseph of Corbeil1
- Isaac ibn Ezra1
- Isaac ibn Ghiyyat1
- Isaac the Blind1
- Isaak Aaron Ettinger1
- Isaak ben Meïr from Düren1
- Isaiah di Trani1