Author
- Innocent VIII1
- Inquisition Sicily)1
- Insha Allah Khan1
- Iohannes de Ianna1
- Ippolito Libri1
- Isaac Aboab2
- Isaac Aboab I1
- Isaac Aboab of Castile1
- Isaac Albalag1
- Isaac Alfasi9
- Isaac Israeli ben Joseph1
- Isaac Israeli ben Solomon1
- Isaac Lattes1
- Isaac Lopez1
- Isaac Luria9
- Isaac Newton3
- Isaac Sasportas1
- Isaac ben Joseph of Corbeil1
- Isaac ben Mordekhai Kimḥi2
- Isaac ibn Ezra1