Encyclopedias, Almanacs, Transcripts, and Maps
- Ilintsy
- Illés, Béla
- Illescas
- Illig, Alvin Anthony
- Illinois, Catholic Church in
- Illowy
- Illowy, Bernard
- Illtud, St.
- Illuminated Manuscripts, Hebrew
- Illuminism
- Illyricus, Thomas
- Ilna'e (Schoenbaum), Eliezer Isaac
- Ilya
- Image of God
- Images, Biblical Prohibition of
- Images, Veneration of
- Imamate
- Imamzadah
- Imber, Naphtali Herz
- Imber, Samuel Jacob