The 12th constituency of Pest County (Hungarian: Pest megyei 12. számú országgyűlési egyéni választókerület) is one of the single member constituencies of the National Assembly, the national legislature of Hungary.

The constituency standard abbreviation: Pest 12.

[2] Since 2014, it has been represented by László Földi of the Fidesz–KDNP party alliance.

The 12th constituency is located in south-eastern part of Pest County.

The constituency includes the following municipalities:[3][2] The constituency was first represented by László Földi of the KDNP from 2014,[4] and he was re-elected in 2018[5] and 2022.