Eagle Peak, Mountain summit in Lewis County, Washington, United States.

Eagle Peak is a 5,958-foot summit at the west end of the Tatoosh Range, a sub-range of the Cascades, in Mount Rainier National Park just east of Longmire. The four-mile Eagle Peak Trail climbs to views of Mount Rainier, and the final summit requires scrambling. Runoff from the peak drains into the Nisqually River.

Eagle Peak was originally called Simlayshe, a Native American word for eagle. George Longmire anglicized the name to Eagle Peak. The four-mile Eagle Peak Trail now leads toward views of Mount Rainier, and the final summit requires scrambling.

The mountain received its current name from settler George Longmire, who adapted it from the Native American term Sim-layshe, meaning eagle.

The Eagle Peak Trail runs about four miles to the summit, and the final stretch requires scrambling over rock. Snow tends to be wet and heavy, raising avalanche danger in winter. July through September offers the most favorable weather for climbing and views of Mount Rainier.

Wild strawberries grow along the trail during late summer months and can be spotted by hikers. The summit offers views of several neighboring peaks in the Cascade Range that create a memorable panorama.