Malbork [ˈmalbɔrk] ( listen) (German: Marienburg (Ltspkr.png listen); Latin: Civitas Beatae Virginis) is a town in northern Poland in the Żuławy region (Vistula delta), with 38,478 inhabitants (2006). Situated in the Pomeranian Voivodeship since 1999, it was previously assigned to Elbląg Voivodeship (1975–1998). It is the capital of Malbork County.

Founded in the 13th century by the Knights of the Teutonic Order, the town is noted for its medieval Malbork Castle, built in the 13th Century as the Order's headquarters and of what later became known as Royal Prussia.