The 2021–22 season was 1.
FC Heidenheim's 15th season in existence and the club's 8th consecutive season in the 2.
Bundesliga, the second tier of German football.
The club also participated in the DFB-Pokal.
FC Heidenheim finished the 2020–21 season in 8th place, 11 points below the automatic promotion places and 13 points below the promotion play-off place.