The 2020–21 Nemzeti Bajnokság I (known as the K&H női kézilabda liga for sponsorship reasons) was the 70th season of the Nemzeti Bajnokság I, Hungarian premier Handball league.

After the 2019–20 season no team got relegated or promoted due to the decision of the Hungarian Handball Federation that they made during the COVID-19 pandemic.

[1] No champion was named, the results of the season got deleted and the final league table of the 2018/19 season determined which clubs participated in the international competitions in 2020/21.

Following is the list of clubs competing in 2020–21 Nemzeti Bajnokság I, with their president, head coach, kit manufacturer and shirt sponsor.

Matches between 11 November 2020 and 1 May 2021 were played behind closed doors.