West Mountain may refer to:
- West Mountain (Albany County, New York), a mountain
- West Mountain (Hamilton County, New York), a mountain
- West Mountain (ski area), Queensbury, New York
- West Mountain, Connecticut, a census-designated place in Ridgefield, Connecticut
- West Mountain (Utah County, Utah)
- West Mountain, Utah, a census-designated place
- West Mountain, a spur peak of Smith Mountain (Taconic Mountains) in western Massachusetts