The 2nd constituency of Nógrád County (Hungarian: Nógrád megyei 02. számú országgyűlési egyéni választókerület) is one of the single member constituencies of the National Assembly, the national legislature of Hungary.

The constituency standard abbreviation: Nógrád 02.

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

The 2nd constituency is located in western part of Nógrád County.

The constituency was first represented by Mihály Balla of the Fidesz from 2014,[4] and he was re-elected in 2018[5] and 2022.