Marvin Ronald Lewis (born September 23, 1958) is an American football coach who is the special advisor to the head coach at Arizona State. Previously, Lewis was the head coach of the Cincinnati Bengals in the National Football League (NFL) for 16 seasons. He came to prominence as the defensive coordinator of the Baltimore Ravens from 1996 to 2001, whose defense in 2000 set the record for the fewest points allowed in a 16-game season and led the franchise to their first Super Bowl title in Super Bowl XXXV. This success resulted in Lewis being named the Bengals' head coach, where he served from 2003 to 2018. He was also a commentator for the Alliance of American Football (AAF).