Toll Mountain is a 7,409-foot-elevation (2,258-meter) summit in Brewster County, Texas, United States.

It ranks as the fourth-highest peak in Big Bend National Park, Brewster County, and the Chisos Mountains, but only the 25th-highest in Texas.

Topographic relief is significant as the summit rises 2,600 feet (792 m) above Juniper Canyon in one mile (1.6 km).

The mountain's toponym was officially adopted in 1948 by the United States Board on Geographic Names to remember Roger W. Toll (1883–1936), American mountaineer, writer, and a National Park Service official who served as the superintendent of Mount Rainier, Rocky Mountain, and Yellowstone National Parks, and was instrumental in establishing Big Bend National Park.

Tragically, Roger Toll and George Wright were killed in a car accident on their return from Texas.