The Muztagh Tower (also: Mustagh Tower; Muztagh: ice tower), located at 76° 21" E, 35° 48" N, is one of the mountains of the Karakoram range in the Himalayas, and often said to be one of its most difficult to climb. The Muztagh Tower stands 7,273 m (23,860 ft) high between the basins of the Baltoro and Sarpo Laggo glaciers, and also possesses a second summit that is 7,180 m high.

Long thought to be unclimbable, it was first conquered in 1956 by a British expedition, consisting of John Hartog, Joe Brown, Tom Patey and Ian McNaught Davis, that came from the west side; the group just barely managed to beat a French party attempting to climb the mountain from the east, reaching the peak on July 6 1956, 5 days before the French did.