2023–24 Nemzeti Bajnokság I

The 2023–24 Nemzeti Bajnokság I (also known as 2023–24 OTP Bank Liga), also known as NB I, was the 125th season of top-tier football in Hungary. The league was officially named OTP Bank Liga for sponsorship reasons. The fixtures were announced on 22 June 2023. Ferencváros were the 4-time defending champions.

Changes
Twelve teams compete in the league – the top ten teams from the previous season and the two teams promoted from the Nemzeti Bajnokság II. The promoted teams are Diósgyőr and MTK Budapest, who are returning to the top flight after respective absences of one and two years. They replaced Budapest Honvéd and Vasas, who were relegated to the Nemzeti Bajnokság II after respective spells of nineteen and one years in the top flight.

Stadium and locations

 * Note: Table lists in alphabetical order.

Personnel and kits
All teams were 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 sponsored all 12 teams of the first league since February 2019, their logo were 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.
 * 1. On the back of shirt.
 * 2. On the sleeves.
 * 3. On the shorts.