| Competition: | Nemzeti Bajnokság I |
| Season: | 2021–22 |
| Winners: | Ferencváros |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Ferencváros |
| Continentalcup2: | Europa Conference League |
| League Topscorer: | Martin Ádám (31 goals) |
| Matches: | 198 |
| Total Goals: | 562 |
| Prevseason: | 2020–21 |
| Nextseason: | 2022–23 |
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.
Diósgyőr and Budafok finished the 2020–21 Nemzeti Bajnokság I in the last two places and thus were relegated to NB II division.
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.
Following is the list of clubs competing in the league this season, with their location, stadium and stadium capacity.
| Team | Location | Stadium | Capacity[1] | data-sort-type="number" | 2020–21 |
|---|---|---|---|---|---|
| Debrecen | Debrecen | Nagyerdei Stadion | 20,340 | 1st (NB II) | |
| Fehérvár | Székesfehérvár | MOL Aréna Sóstó | 14,144 | 3rd | |
| Ferencváros | Budapest (Ferencváros) | Groupama Aréna | 22,043 | 1st | |
| Gyirmót | Győr | Ménfői úti Stadion | 4,500 | 2nd (NB II) | |
| Honvéd | Budapest (Kispest) | Bozsik Aréna | 8,000 | 10th | |
| Kisvárda | Kisvárda | Várkerti Stadion | 2,993 | 5th | |
| Mezőkövesd | Mezőkövesd | Városi Stadion | 4,183 | 8th | |
| MTK | Budapest | Hidegkuti Nándor Stadion | 5,014 | 7th | |
| Puskás Akadémia | Felcsút | Pancho Aréna | 3,816 | 2nd | |
| Paks | Paks | Fehérvári úti Stadion | 6,150 | 4th | |
| Újpest | Budapest (Újpest) | Szusza Ferenc Stadion | 12,670 | 6th | |
| Zalaegerszeg | Zalaegerszeg | ZTE Aréna | 11,200 | 9th |
| Debrecen | Fehérvár | Ferencváros | Gyirmót | |
|---|---|---|---|---|
| Nagyerdei Stadion | MOL Aréna Sóstó UEFA Category 4 Stadium | Groupama Aréna | Ménfői úti Stadion | |
| Capacity: 20,340 | Capacity: 14,201 | Capacity: 22,043 | Capacity: 4,728 | |
| Honvéd | Kisvárda | |||
| Bozsik Aréna | Várkerti Stadion | |||
| Capacity: 8,428 | Capacity: 2,993 | |||
| Mezőkövesd | MTK | |||
| Városi-Stadion | Hidegkuti Nándor Stadion | |||
| Capacity: 4,183 | Capacity: 5,014 | |||
| Paks | Puskás Akadémia | Újpest | Zalaegerszeg | |
| Fehérvári úti Stadion | Pancho Aréna | Szusza Ferenc Stadion | ZTE Arena | |
| Capacity: 6,163 | Capacity: 3,816 | Capacity: 13,432 | Capacity: 11,200 | |
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.
| Team | Head coach | Captain | Kit manufacturer | Additional shirt sponsor | |
|---|---|---|---|---|---|
| Debrecen |  Joan Carrillo |  Balázs Dzsudzsák | Adidas | Tranzit-Food | |
| Fehérvár | Michael Boris | Nemanja Nikolić | Adidas | MOL | |
| Ferencváros |  Stanislav Cherchesov | Dénes Dibusz | Nike | Magyar Telekom | |
| Gyirmót | Aurél Csertői | Patrik Nagy | Jako | Alcufer Győr | |
| Honvéd |  Nebojša Vignjević | Patrik Hidi | Macron | ||
| Kisvárda | Gábor Erős | Dávid Dombó | Adidas | MasterGood | |
| Mezőkövesd | Attila Supka | Tamás Cseri | Adidas | Zsóry Gyógy- és Strandfürdő | |
| MTK | Gábor Márton | Zsombor Nagy | Nike | Prohuman | |
| Paks | György Bognár | János Szabó | Jako | ||
| Puskás Akadémia |  Zsolt Hornyák | Zsolt Nagy | Mészáros & Mészáros | ||
| Újpest | Miloš Kruščić | Nikola Mitrović | Puma | ||
| Zalaegerszeg | Róbert Waltner | Benjamin Babati | 2Rule |
