The 3rd constituency of Borsod-Abaúj-Zemplén County (Hungarian: Borsod-Abaúj-Zemplén megyei 03. számú országgyűlési egyéni választókerület) is one of the single member constituencies of the National Assembly, the national legislature of Hungary. The constituency standard abbreviation: Borsod-Abaúj-Zemplén 03. OEVK. Since 2014, it has been represented by Gábor Riz of the Fidesz–KDNP party alliance.