Daniel Lee "Dan" Dierdorf (born June 29, 1949) is a former American football player and current television sportscaster. He played 13 NFL seasons and has worked for ABC's Monday Night Football and CBS as a color commentator since his retirement.
Born in Canton, Ohio, Dierdorf played football at Glenwood High School in Canton (now GlenOak High School), then the University of Michigan before being drafted by the St. Louis Cardinals in the 2nd round of the 1971 NFL Draft.
At Michigan, Dan was a consensus All-American in 1970 and assisted the team to a 25–6 record in his 3 years as a starter. The Wolverines were Big Ten Champions in 1969. Dierdorf made all-conference in 1969 and 1970 He was chosen for the East-West Shrine Game and Hula Bowl and for the 1971 College All-Star Game. In 2000, Dierdorf was enshrined in the College Football Hall of Fame.