Martin James Monti (October 24, 1921 – September 11, 2000) was a United States Army Air Forces pilot who defected to Nazi Germany in October 1944, joined the Waffen-SS, and worked as a propagandist and writer. After the end of World War II, he was tried and sentenced for theft and desertion. Monti was granted clemency six months later. However, in 1948, after his involvement in Nazi propaganda was discovered, he was arrested, pleaded guilty to treason, and was sentenced to 25 years in prison.