Otokomi Mountain is a 7,939-foot peak in the Lewis Range of Glacier National Park in Montana, rising north of Saint Mary Lake and the Rising Sun area on the park’s east side. It was named for Otokomi, George Bird Grinnell’s part-Blackfoot hunting partner, and the name means “yellowfish.” Overlooking the Saint Mary Valley, it is one of Glacier’s prominent eastern peaks and forms part of the striking mountain scenery that defines the park.