Chapman Peak (9,411 feet (2,868 m)) is located in the Livingston Range, Glacier National Park in the U.S. state of Montana.

The mountain is named for Robert H. Chapman, one of the US Geological Survey topographers who worked on mapping Glacier Park between 1900 and 1904.

Like other mountains in Glacier National Park, Chapman Peak is composed of sedimentary rock laid down during the Precambrian to Jurassic periods.

Formed in shallow seas, this sedimentary rock was initially uplifted beginning 170 million years ago when the Lewis Overthrust fault pushed an enormous slab of precambrian rocks 3 mi (4.8 km) thick, 50 miles (80 km) wide and 160 miles (260 km) long over younger rock of the cretaceous period.

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