2020–21 Gaziantep F.K. season

The 2020–21 season is Gaziantep F.K.'s 32nd season in existence and the club's 2nd consecutive season in the top flight of Turkish football. In addition to the domestic league, Gaziantep will participate in this season's editions of the Turkish Cup. The season covers the period from July 2020 to 30 June 2021.

Results by round
Note: Since the league has been expanded to 21 teams each team will earn a bye twice this season.