D. O. Lee Peak, Mountain summit in White Cloud Mountains, Idaho, United States.

D. O. Lee Peak is a summit in the White Cloud Mountains of Custer County, Idaho, reaching 11,347 feet (3,459 m), the third-highest peak in the range and 56th-highest in the state. It stands 13 miles (21 km) southeast of Stanley, 1.25 miles (2.01 km) south-southwest of Calkins Peak, and rises west of Cirque, Sapphire, Cove and the Born Lakes.

The peak takes its name from David Oliver Lee, a Forest Service ranger stationed in Challis who served as the first ranger managing the Sawtooth Wilderness. His contributions to the early protection of this mountain region earned him this geographic honor.

The peak's name honours David Oliver Lee (1934–1982), a Challis native who became the first U.S. Forest Service ranger assigned to the Sawtooth Wilderness. The summit rises west of Cirque, Sapphire, Cove and the Born Lakes, and lies 13 miles southeast of Stanley.

The climbing season is best during warmer months when road access from the south via Slate Creek Road is most reliable. Be prepared for exposed sections and loose rock that are common on peaks in this Idaho range.

The peak is named after David Oliver Lee (1934–1982), a Challis native who became the first U.S. Forest Service ranger assigned to the Sawtooth Wilderness. It stands 1.25 miles south-southwest of Calkins Peak, its line parent, and is the 56th-highest summit in Idaho.