A mountaineer is a mountain climber.
Mountaineer may also refer to:
University athletic teams and mascots Appalachian State Mountaineers, the athletic teams of Appalachian State University Eastern Oregon Mountaineers, the athletic teams of Eastern Oregon University Mansfield Mountaineers, the athletic teams of Mansfield University of Pennsylvania Mohawk Mountaineers, the athletic teams of Mohawk College West Virginia Mountaineers, the athletic teams of West Virginia University West Virginia Mountaineer, mascot for the university Western Colorado Mountaineers, the athletic teams of Western Colorado University
Transportation Mercury Mountaineer, a midsize sport utility vehicle (SUV) manufactured under the Mercury brand Rocky Mountaineer, a Canadian rail-tour company Mountaineer (Amtrak train), a passenger train operated by Amtrak in the 1970s Mountaineer (B&M train), a passenger train operated by the Boston and Maine Railroad in the 1940s and 1950s Mountaineer, a train operated by the Minneapolis, St. Paul and Sault Ste. Marie Railroad
Other Mountaineers cricket team, a Zimbabwean first class cricket team Mountaineers women's cricket team, a Zimbabwean women's cricket team Mountaineer Power Plant, a major coal-fired electricity-generating station in New Haven, West Virginia, USA The Mountaineers, an outdoor recreation club based in Seattle, WA The Mountaineer, a newspaper based in Waynesville, North Carolina The Mountaineer, an Australian newspaper in Katoomba, New South Wales (1894—1908) Bearded mountaineer, Oreonympha nobilis, a species of hummingbird Ski mountaineering, an Olympic sport introduced in 2026 Mountaineer, the Secret Service code name for Donald Trump Jr.