Marvin Daniel Levy (born August 3, 1925) is a former American and Canadian football coach, front office executive, and author. He served as head coach in the Canadian Football League (CFL) for the Montreal Alouettes (1973–1977) and in the National Football League (NFL) for the Kansas City Chiefs (1978–1982) and the Buffalo Bills (1986–1997), coaching the Bills to four consecutive American Football Conference championships. He was elected to the Pro Football Hall of Fame in 2001.
Levy's family emigrated from Montreal, Quebec, Canada. His father, a decorated World War I veteran, ran a small business on the South Side of Chicago, Illinois. He graduated from South Shore High School in Chicago in 1943. Following graduation, he enlisted in the Army Air Forces and spent the remainder of World War II in the military; Levy was discharged from the army shortly after the war ended. Though he was known to use historical examples to inspire his teams, Levy corrected those who used war and combat metaphors to describe football games by telling them that he actually fought in a war and that football and war were in no way comparable. Referring to the Super Bowl, he once said "This is not a must-win; World War II was a must-win".