Marvin Ronald Lewis (b. September 23, 1958) is an American football coach. He is the head coach for the Cincinnati Bengals of the National Football League. In 2002, Lewis was the defensive coodinator for the Washington Redskins. Before that, he was the defensive coodinator for the Baltimore Ravens, who, like Cincinnati, are also in the AFC North. In 2000, a Baltimore defense led by Lewis was one of the most feared defense in league history as they won Super Bowl XXXV.