The 3rd constituency of Békés County (Hungarian: Békés 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: Békés 03. OEVK. Since 2014, it has been represented by József Kovács of the Fidesz–KDNP party alliance.