Rainbow Peak, Mountain summit in Glacier National Park, Montana, US.

Rainbow Peak is a 9,895-foot (3,016 m) summit in the Livingston Range of Glacier National Park, Montana. It is the ninth-tallest mountain in the park and rises over 1 mile (1.6 km) above Bowman Lake. The namesake Rainbow Glacier lies immediately east and northeast of the peak.

Rainbow Peak lies in the Livingston Range of Glacier National Park, Montana, and rises 9,895 feet (3,016 m), making it the ninth-tallest mountain in the park. In July 1998 two climbers died on the peak when a snow-covered chimney they were ascending gave way beneath a collapsing cornice, and both fell to their deaths.

The peak's name comes from Rainbow Glacier, which lies immediately east and northeast of the summit. In July 1998 two climbers died here when a cornice collapsed on a snow-covered chimney and they fell. The mountain rises over a mile above Bowman Lake, and the climb from the Bowman Lake Campground parking lot gains 5,865 feet.

Visitors need a permit from the park before attempting to reach this summit, and climbing experience is required due to technical terrain. Access is possible by boat across Bowman Lake or via backcountry hiking routes, with conditions and difficulty varying significantly depending on the chosen path.

From the Bowman Lake Campground parking lot, the route to the summit gains 5,865 feet (1,788 m) of elevation. In July 1998, two climbers died on the peak when a snow-covered chimney they were ascending collapsed, causing them to fall.