Münchhausen is a German nobility surname. It may refer to:
Hieronymus Karl Friedrich, Freiherr von Münchhausen, a German nobleman and storyteller
Baron Munchausen, a fictional character inspired by Hieronymus Karl Friedrich, Freiherr von Münchhausen
Börries von Münchhausen, a German poet
Otto von Münchhausen,a German botanist
Johannes V von Münchhausen (1542–1560), a prince-bishop of the Bishopric of Ösel–Wiek
Philipp Adolph von Münchhausen, a head of the German Chancery in London