Tolmie Peak is a 5,920+-foot peak in the Mount Rainier area of the Cascade Range, in the U.S. state of Washington. It is located 2 miles northwest of Mowich Lake, in the northwest part of Mount Rainier National Park. Streams that drain the slopes of Tolmie Peak, including Tolmie Creek and Ranger Creek, join the Carbon River, which flows into the Puyallup River and Puget Sound. Just south of Tolmie Peak, in a basin carved by glaciers, lies Eunice Lake. To the northwest is Howard Peak.