A total of 21 teams contested the league, including eighteen sides from the
2019–20 season and three promoted from the
2019–20 TFF First League, including
Hatayspor and
BB Erzurumspor, as well as the winners of the
2019–20 TFF First League playoffs,
Fatih Karagümrük. Hatayspor made its debut in the Süper Lig. BB Erzurumspor made an immediate return after one season away. Fatih Karagümrük returned following a 36 year hiatus after achieving two successive promotions. They were also relegated to amateur level twice during this period. The bottom four teams were relegated to the
2021–22 TFF First League.
Stadiums and locations Personnel and sponsorship Managerial changes Foreign players ==Super lig==