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- Andor Jarosz (died 1946), Hungarian interior minister
- Friedrich Jeckeln (died 1946), German SS officer and Police Leader of Ostland
- Goran Jelisić (born 1969), Bosnian Serb sentenced to 40 years for murders in Brčko. Personally killed 13 civilians
- Alfred Jodl (1890–1946), German commander of operations personnel
- Drago Josipović (born 1955), Bosnian Croat sentenced to 15, changed to 12 years following appeal
- Heinz Jost (died 1946), German Einsatzgruppe commander
- Hans Jüttner (1894–1965) commander of German SS's Main Leadership Office and Obergruppenführer.
Read more about this topic: List Of Convicted War Criminals