Lieutenant Albert Michael Sinclair, DSO (ca. 1918 - 25 September 1944), known as the Red Fox, was a British prisoner at Colditz Castle (POW camp Oflag IV-C) during World War II. He was involved in a number of escape attempts throughout the war and was recognized within the camp for his determination to escape. Michael Sinclair is the only person to be killed while attempting to escape Colditz.