The 2012–13 Appalachian State Mountaineers men's basketball team represented Appalachian State University during the 2012–13 NCAA Division I men's basketball season.

The Mountaineers, led by third year head coach Jason Capel, played their home games at the George M. Holmes Convocation Center and are members of the North Division of the Southern Conference.

They advanced to the semifinals of the Southern Conference tournament, where they lost to Davidson.

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