Antler Peak, Mountain summit in the Gallatin Range, Yellowstone National Park, Wyoming, United States

Antler Peak is a summit in the Gallatin Range of Yellowstone National Park, reaching 10,063 feet (3,067 m). It stands in the Park County section of Wyoming, and the Grand Loop Road crosses Swan Lake Flats and the Indian Creek area within sight of the peak.

The mountain was originally called Bell's Peak before being renamed Antler Peak by the United States Geological Survey in 1885. The name change came about because elk antlers were commonly found scattered across its slopes.

The mountain serves as a research site for geologists studying the volcanic and tectonic formations characteristic of the Yellowstone region.

Visitors can best see this peak from the Grand Loop Road, where several pullouts and scenic stops are located nearby. There is no maintained hiking trail to the summit, but viewing from the road provides good photo opportunities.

Arnold Hague of the U.S. Geological Survey renamed the peak in 1885 after finding numerous shed elk and deer antlers on its slopes; it had been named Bell's Peak in 1878 for an Assistant Secretary of the Interior. The Bighorn Pass Trail passes about 2 miles north of the summit.