Mount Sheridan, Mountain summit in Teton County, Wyoming, US

Mount Sheridan is a 10,313-foot (3,143 m) peak in the Red Mountains of Yellowstone National Park, Wyoming, rising above Heart Lake. It is not part of the Teton Range, which lies to the southwest. The Mount Sheridan Trail climbs 3,000 feet in 3 miles from the Heart Lake Trail.

In 1870 members of the Washburn–Langford–Doane Expedition called it Brown Mountain, while Lt. Gustavus C. Doane named it Yellow Mountain. Ferdinand Vandeveer Hayden renamed it Red Mountain during the 1871 Hayden survey, and on August 10, 1871 Captain John W. Barlow climbed it and named it Mount Sheridan for General Philip H. Sheridan. The name Red Mountain later passed to the whole range.

The peak's name honours General Philip H. Sheridan of the U.S. Army, one of the early protectors of Yellowstone. Before that, the Washburn–Langford–Doane Expedition of 1870 called it Brown Mountain, while Lt. Gustavus C. Doane named it Yellow Mountain; in 1871 Ferdinand Vandeveer Hayden called it Red Mountain, and that name later passed to the whole range.

The summit is reached by the Mount Sheridan Trail, 3.9 miles (6.3 km) long, which branches off the Heart Lake Trail at the northwest corner of Heart Lake. The route climbs about 3,000 feet (910 m) over 3 miles (4.8 km), so plan a steep ascent and a long day out.

The 1870 Washburn–Langford–Doane Expedition called it Brown Mountain, while Lt. Gustavus C. Doane named it Yellow Mountain; in 1871 Ferdinand Vandeveer Hayden renamed it Red Mountain, and that name later passed to the whole range around it.