Mount Agassiz, Mountain peak in Inyo County and Fresno County, United States.

Mount Agassiz is a 13,899-foot summit at the north end of the Palisades in the eastern Sierra Nevada, on the boundary between Kings Canyon National Park and Inyo National Forest. It is the northernmost and easiest to climb of the major Palisades summits, with three routes: the west slope, the southeast face via Agassiz Col, and the northeast face.

In 1879 Lilbourne Winchell named a nearby peak Agassiz Needle for Harvard zoology and geology professor Louis Agassiz; the name later moved to the present Mount Agassiz, which the USGS recognized under its current name. Norman Clyde established the technical northeast face route, following a canyon, couloir and arête from Fifth Lake, but the sources give no date for his ascent.

The peak marks the boundary between Kings Canyon National Park and Inyo National Forest. Hikers and climbers passing through the area use it as a natural reference point in this mountain landscape.

The Bishop Pass Trail from South Lake is the main approach to this peak for most climbers. The west slope provides the most direct route, though experience and proper equipment are needed for safe climbing.

The west slope is significantly easier to climb than other approaches, a fact many climbers overlook when planning their routes. This allows for a more efficient ascent compared to other sides of the mountain.