The 2021 Auburn Tigers football team represented Auburn University in the 2021 NCAA Division I FBS football season. The Tigers played their home games at Jordan–Hare Stadium in Auburn, Alabama, and competed in the Western Division of the Southeastern Conference (SEC). They were led by first-year head coach Bryan Harsin.
The Tigers finished the 2020 season 6–5, 6–4 in SEC play to finish in third place in the Western Division. Head coach Gus Malzahn was fired at the end of the regular season after finishing 6–4 in his eighth season. Defensive coordinator Kevin Steele coached in the bowl game. The Tigers were invited to the Citrus Bowl where they lost to Northwestern.Boise State head coach, Bryan Harsin, was hired on December 22.
The A-Day spring game was held on Saturday, April 17. Team Auburn defeated Team Tigers 17–3. Running back Tank Bigsby was named Offensive MVP, cornerback Trey Elston was named Defensive MVP, and kicker Anders Carlson was named Special Teams MVP.