Encyclopedias, Almanacs, Transcripts, and Maps
- Jaffe, Sir Otto
- Jaffe-Margoliot, Israel David
- Jaffee, Irving W.
- Jagel, Abraham
- Jagel, Abraham ben Ḥananiah Dei Galicchi
- Jagiełło (Władysław II)
- Jaglom (née Horesh), Raya
- Jaglom, Henry
- Jahannam
- Jahaz, Jahaza
- Jahiliyya
- Jahoda, Marie
- Jainism and Buddhism
- Jair
- Jakab, Dezsö (1864–1932) and Komor, Marcell (1868–1944)
- Jakobovits, Lord Immanuel
- Jakobovits, Tobias
- Jakobson, Max
- Jakobson, Roman
- Jakubowski, Jackie