The 1st constituency of Budapest (Hungarian: Budapesti 01. számú országgyűlési egyéni választókerület) is one of the single member constituencies of the National Assembly, the national legislature of Hungary.

The constituency standard abbreviation: Budapest 01.

The 1st constituency is located in central part of Budapest.

The constituency was first represented by Antal Rogán of the Fidesz from 2014 to 2018.

[4] Antal Csárdi of the LMP was elected in 2018[5] and re-elected in 2022 (with United for Hungary support).