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- Karl Jäger - SS officer and Einsatzkommando leader and author of the "Jäger Report" detailing reports of mass murder in Lithuania between July and December 1941.
- Friedrich Jeckeln - Leader of one of the largest collection of Einsatzgruppen and personally responsible for ordering the deaths of over 100,000 Jews, Slavs, Roma, and other "undesirables."
- Alfred Jodl - Generaloberst and Chief of the Operations Staff of the Armed Forces High Command (Oberkommando der Wehrmacht, or OKW) during World War II, acting as deputy to Wilhelm Keitel.
- Hanns Johst - Playwright and Poet Laureate of the Nazi party.
- Hans Jüttner - SS-Obergruppenführer. Head of the SS-Führungshauptamt (SS Leadership Main Office) or SS-FHA.
- Rudolf Jung - An instrumental force and agitator of German-Czech National Socialism and, later on, a member of the German Nazi Party.
Read more about this topic: List Of Nazi Party Leaders And Officials