2021 Jacksonville State Gamecocks football team

The 2021 Jacksonville State Gamecocks football team represented Jacksonville State University in the 2021 NCAA Division I FCS football season. The Gamecocks competed in the AQ7, a football partnership between the Western Athletic Conference (WAC) and the ASUN Conference, until the ASUN began play as a football conference. Jacksonville State was led by eighth-year head coach John Grass for the first nine games of the season before Grass resigned. Maxwell Thurmond was appointed interim head coach for the final two games of the year. Jacksonville State finished the season with an overall record of 5–6 and a mark of 3–3 in conference play, tying for fourth place in the AQ7. The team played home games at Burgess–Snow Field at JSU Stadium in Jacksonville, Alabama.