The Messner Mountain Museum (MMM) is a museum project created in 2006 by Italian mountaineer and extreme climber Reinhold Messner in South Tyrol in northern Italy.
Messner's museum project is designed to educate visitors on "man's encounter with mountains" and deals with the science of mountains and glaciers, the history of mountaineering and rock climbing, the history of mythical mountains, and the history of mountain-dwelling people.
The museum project consists of six museums based at six different locations: Firmian, Juval, Dolomites, Ortles, Ripa and Corones.