Cincinnati Bengals Team |


Mark Duffner

Senior Defensive Assistant

College: William & Mary

Hometown: Annandale, Va.

Experience: 25 years


A Bengals assistant from 1997-2002, Mark Duffner returned to Cincinnati's coaching staff in '19 as senior defensive assistant. He now is in his 25th season as an NFL coach, and ninth with the Bengals' staff. Prior to his time in the NFL, Duffner coached 22 years in the college ranks, including 11 as a head coach.