Jim Mountain is a 10,430-foot-elevation (3,179-meter) summit in Park County, Wyoming, United States.

[2] Precipitation runoff from the mountain drains into tributaries of the Shoshone River.

Topographic relief is significant as the south aspect rises 4,830 feet (1,470 meters) above North Fork Shoshone River in four miles (6.4 km) and the east aspect rises 2,000 feet (610 meters) above Jim Creek in one mile (1.6 km).

[4] The mountain's toponym has been officially adopted by the United States Board on Geographic Names.

Due to its altitude, it receives precipitation all year, as snow in winter and as thunderstorms in summer, with a dry period in late spring.