The 2021–22 Nemzeti Bajnokság I (also known as 2021–22 OTP Bank Liga), also known as NB I, was the 123rd season of top-tier football in Hungary. The league was officially named OTP Bank Liga for sponsorship reasons. Ferencváros were the defending champions.
The two relegated teams were replaced with the top two teams in 2020–21 Nemzeti Bajnokság II, champion Debrecen and runner-up Gyirmót, each having the required licence for top-division play.
Stadium and locations
Following is the list of clubs competing in the league this season, with their location, stadium and stadium capacity.
All teams are obligated to have the logo of the league sponsor OTP Bank as well as the Nemzeti Bajnokság I logo on the right side of their shirt. Hungarian national sports betting brand Tippmix sponsors all 12 teams of the first league since February 2019, their logo is therefore present on all team kits.
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players and Managers may hold more than one non-FIFA nationality.
^Since the winners of the 2021–22 Magyar Kupa, Ferencváros, qualified for the Champions League, the Europa Conference League berth awarded to the Magyar Kupa winners was transferred to the highest-placed Nemzeti Bajnokság I team not already qualified for European competition, the fourth-placed team.