The 2021 Miami RedHawks football team represented Miami University in the 2021 NCAA Division I FBS football season. They were led by eighth-year head coach Chuck Martin and played their home games at Yager Stadium in Oxford, Ohio, as members of the East Division of the Mid-American Conference.
The Mid-American Conference media day was held on July 20, 2021 at Ford Field in Detroit, Michigan. Miami was represented by head coach Chuck Martin, wide receiver Jack Sorenson and defensive back Mike Brown. The RedHawks were predicted to finish in third place in the East Division in the Mid-American preseason poll.