A mountain hut (also known as alpine hut, mountain shelter, and mountain hostel) is a building located in the mountains intended to provide food and shelter to mountaineers, climbers and hikers. Mountain huts are usually operated by an Alpine Club or some organisation dedicated to hiking or mountain recreation.
Mountain huts can provide a range of services, starting with shelter and simple sleeping berths. Some, particularly in remote areas, are not staffed, but others have staff which prepare meals and drinks and can provide other services, including provide lectures or sell clothing and small items. Mountain huts usually allow anybody to access their facilities, although some require reservations.
- See also: Alpine club hut
The long history of mountaineering in the Alps has led to a large number of Alpine club huts as well as private huts along the mountaineering paths. These huts are categorised according to their location and facilities. These kind of huts may have beds or a mattress room (Matratzenlager) for overnight stays. They may also offer discounts for members of the various Alpine clubs.
In the United Kingdom and Ireland the tradition is of unwardened "climbing huts" providing fairly rudimentary accommodation (but superior to that of a bothy) close to a climbing ground; the huts are usually conversions (e.g. of former quarrymen's cottages, or of disused mine buildings), and are not open to passers-by except in emergency. Many climbing clubs in the UK have such huts in Snowdonia or in the Lake District. A well-known example is the 'Charles Inglis Clark Memorial Hut' (the 'CIC Hut') under the northern crags of Ben Nevis in Scotland - this is a purpose-built hut, high up the mountain.
The Norwegian Trekking Association operates about 460 cabins mostly in the mountains and in forested areas, of which about 400 have lodgins., Many cabins are unstaffed and open all year, while the staffed cabins often are just open during summer.
In Poland mountains shelters and huts are run by PTTK - Polish Tourist Society. Most of them offer only common sleeping rooms and refreshments; no organised catering is available. Polish mountain huts are obliged by their own regulations to overnight each person who is not able to find any other place before sunset, though the conditions may be tough (e.g. a mattress in hall or warm basement). The hut shall provide each tourist or hiker with free boiling water for hot drinks.
There are also many huts in the United States, spread on both the Rocky Mountains and the Appalachian Mountains. Huts such as the High Huts of the White Mountains are "full service" (cooks serve food) throughout June to mid-September, and are open for the rest of the year as a "self service" (self serve food) hut. There are also many mountain huts throughout mountainous areas in Maine.
The New Zealand Department of Conservation "manages a network of over 950 huts of all shapes and sizes." 
Frey Hut in San Carlos de Bariloche
Morskie Oko shelter in Poland
Samotnia, mountain hut in Karkonosze, Poland
Refuge de la Charpoua in the French Alps
Greenleaf Hut in the White Mountains of the U.S.
- Wilderness hut - rent-free, open dwelling place for temporary accommodation
- Log cabin - small house built from logs
- Backcountry hut – huts that serve overnight hiking and trekking needs
- Vernacular architecture - traditional architecture in a particular area
- "History of the Huts". Retrieved 16 July 2012.
-  The Norwegian Trekking Association, retrieved 2 June 2013
- DNT cabins - general information The Norwegian Trekking Association, retrieved2 June, 2013
- Regulamin schroniska PTTK [retrieved 2009-12-25]
- 10th Mountain Division Hut Association
- AMC huts
- "Maine Huts". Retrieved 15 July 2012.
- NZ Department of Conservation "Huts by region"
- Media related to Alpine huts at Wikimedia Commons
- Media related to Mountain huts at Wikimedia Commons