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