Walter Edward Truemper (October 31, 1918 – February 20, 1944) was a United States Army Air Forces officer in World War II and a recipient of the U.S. military's highest decoration, the Medal of Honor. He and his crewmate, Sergeant Archibald Mathies, were posthumously awarded the medal for attempting to save the life of their wounded pilot by staying aboard and trying to land their damaged aircraft. Truemper, Mathies, and the pilot were killed when the aircraft crashed following a third unsuccessful landing attempt.