Frank Blaichman (December 11, 1922 – December 27, 2018), also known as Ephraim Blaichman, occasionally spelled Frank Bleichman, and in Polish Franek or Franciszek Blajchman, was a Polish-Jewish leader of a communist armed organization during World War II and a Holocaust survivor.
In post-war communist Poland, Blaichman was the head of the Prison and Camps Department at the Security Office in Kielce.
His unit was responsible for murdering soldiers of the Polish Underground (AK) who fought against Nazi Germany during the war.
Blaichman’s portrayal of his activities in communist resistance has been questioned, and it has been alleged that he was a member of a criminal gang associated with communist Gwardia Ludowa which focused on forcefully obtaining provisions from the local populace and clashed with the Polish resistance.