Johann Bernhard Stephan, Graf Pálffy de Erdod (Hungarian: gróf erdodi Pálffy V.
János Bernát István, Croatian: Ivan) (Vörösko, Hungary (now: Cervený Kamen, Slovakia), 20 August 1664 – Pozsony, Hungary (now: Bratislava, Slovakia), March 24, 1751) was a Hungarian noble, Imperial Field marshal and Palatine of Hungary.