There are many fortresses, castles, and towns of this name. Some are:

• A castle built by the Teutonic Knights in Prussia, that soon developed into a city in the Royal Prussia, from 1309 to 1454 the capital of the Teutonic Order state. Polish name: Malbork.

• A town in Niederalfingen , Germany.

• Marienburg (Hildesheim) , a part of Hildesheim in Lower Saxony, Germany

• Marienburg, Surname

• An abbey built near the ruins of a Roman fortress near Trier, Germany.

• A castle in Hanover.

• Marienburg (WFRP) An imaginary city in Warhammer Fantasy Roleplay.