Karl Sack (born June 9, 1896 in Bosenheim (now Bad Kreuznach), executed April 9, 1945 in Flossenbürg concentration camp) was a German jurist and member of the resistance movement during World WarII . He was a general during WW II
During World War II, Sack maintained contacts within the resistance circles in the military, including Admiral Wilhelm Canaris, Major General Hans Oster and Hans von Dohnanyi, as well as with others within the Abwehr (German military intelligence). He was part of the attempt to assassinate Hitler on July 20, 1944 and after that failed attempt he was arrested on August 9, 1944. In the very last days of the war, he was brought before an SS drumhead court-martial presided over by Otto Thorbeck. He was sentenced to death and hanged 2 days later. Sack had been slated for the role of Justice Minister within a planned post-coup civilian government.