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- Erich von dem Bach-Zelewski - Commander of the "Bandenkämpfverbände" SS units responsible for the mass murder of 35,000 civilians in Riga and more than 200,000 in Belarus and eastern Poland.
- Herbert Backe - Minister of Food (appointed 1942) and Minister of Agriculture (appointed 1943).
- Richard Baer - Commander of the Auschwitz I concentration camp from May 1944 to February 1945.
- Alfred Baeumler - Philosopher who interpreted the works of Friedrich Nietzsche in order to legitimize Nazism.
- Klaus Barbie - Head of the Gestapo in Lyon. Nicknamed "the Butcher of Lyon" for his use of torture on prisoners.
- Josef Berchtold - Very early Party member, and the second Reichsführer-SS from 1926-27.
- Gottlob Berger - Chief of Staff for Waffen SS and head of the SS's main leadership office.
- Werner Best - SS-Obergruppenführer and Civilian administrator of Nazi occupied France and Denmark.
- Hans Biebow - Chief of Administration of the Łódź Ghetto.
- Paul Blobel - SS commander primarily responsible for the Babi Yar massacre at Kiev.
- Werner von Blomberg - Generalfeldmarschall, Defence Minister 1933-1935, Minister of War and Commander-in-Chief of the Armed Forces 1935-1938. Forced out in the Blomberg-Fritsch Affair
- Hans-Friedrich Blunck - Propagandist and head of the Reich Literature Chamber between 1933 and 1935.
- Ernst Boepple - State Secretary of the General Government in Poland, serving as deputy to Deputy Governor Josef Bühler. Deeply implicated in the "Final Solution"
- Ernst Wilhelm Bohle - leader of the Foreign Organization of the German Nazi Party from 1933 until 1945.
- Martin Bormann - Head of the Party Chancellery (Parteikanzlei) and private secretary to Adolf Hitler.
- Philipp Bouhler - Chief of the Chancellery of the Führer of the NSDAP and leader of the Action T4 euthanasia program.
- Viktor Brack - Organiser of the Euthanasia Programme, Operation T4 and one of the men responsible for the gassing of Jews in the extermination camps.
- Otto Bradfisch - Commander of the Security Police in Łódź and Potsdam.
- Karl Brandt - Personal physician of Adolf Hitler in August 1944 and headed the administration of the Nazi euthanasia program from 1939.
- Walther von Brauchitsch - Generalfeldmarschall, Commander-in-Chief of the German Army 1938-1941.
- Alois Brunner - Commander of the Drancy internment camp outside Paris from June 1943 to August 1944. Reportedly "the world's highest-ranking Nazi fugitive believed still alive."
- Walter Buch - Jurist and supreme magistrate of the Nazi party.
- Josef Bühler - State secretary for the Nazi-controlled General Government in Kraków during World War II.
- Josef Bürckel - Politician and leading member of the Schutzstaffel from November 1937.
- Anton Burger - Commandant of Concentration camp Theresienstadt between 1943 and 1944.
Read more about this topic: List Of Nazi Party Leaders And Officials