Mount Anderson, Mountain summit in Olympic National Park, Washington, United States.

Mount Anderson is a 7,330-foot (2,234 m) peak in the Olympic Mountains of Washington, within Olympic National Park. It is the second highest point on the Anderson Massif, after West Peak. Anderson Glacier formerly occupied a cirque on the south flank, Eel Glacier lies in a cirque northwest of the summit, and Hanging Glacier sits on the east side of a ridge extending north from the peak.

Mount Anderson was named by army Lieutenant Joseph O'Neil for his commanding officer, Thomas M. Anderson. The first recorded ascent came in 1920, when Fairman B. Lee and a party of 13 settlers climbed the peak.

The name honours Thomas M. Anderson, the commanding officer of Lieutenant Joseph O'Neil, who named the peak while mapping the range. The first recorded ascent came in 1920, when Fairman B. Lee and a party of 13 settlers reached the summit.

The best climbing season runs from May through August when snow conditions are most stable and passable. Routes demand experience with snow and ice climbing, along with solid fitness and mountaineering skills.

Mount Anderson sits at the centre of three watersheds: water from its slopes drains into the Dosewallips River toward Puget Sound, the Quinault River toward the Pacific, and the Hayes River north to the Strait of Juan de Fuca. The summit is the second highest point on the Anderson Massif, after West Peak.