The oldest NFL head coach ever was George Halas, who was born in 1895 and coached the Chicago Bears for 40 seasons.
George Halas was the oldest NFL head coach ever, coaching until he was 72 years old. He is also one of the co-founders of the NFL.
At 82 years old, Tom Landry was the oldest head coach in NFL history when he retired from the Dallas Cowboys in 1988. He had been with the team for 29 years, winning two Super Bowls and five NFC championships.
At the age of 73, Don Shula became the oldest head coach in NFL history when he led the Miami Dolphins to their second Super Bowl victory in 1985. He retired from coaching after that season, but his legacy as one of the greatest coaches of all time lives on.
At 70 years of age, Chuck Noll was the oldest head coach ever in the NFL. He was born in Cleveland, Ohio on January 5, 1932. Noll played collegiately at the University of Dayton before being drafted by the Browns in 1953. He served as an assistant coach with Washington and Baltimore before being named head coach of the Pittsburgh Steelers in 1969. Noll led the Steelers to four Super Bowl victories during his 23-year tenure as head coach. He retired following the 1991 season with a career record of 209-156-1. Noll was inducted into the Pro Football Hall of Fame in 1993.
Bill Belichick is the oldest NFL head coach ever. He was born on April 16, 1952, in Nashville, Tennessee. Belichick has been the head coach of the New England Patriots since 2000. He is also the winningest coach in NFL history, with a record of 273-141-0.