Fort Bridger, Military outpost in Uinta County, United States.

Fort Bridger is a former fur trading post and military fort in Uinta County, Wyoming, established in 1842 by Jim Bridger and Louis Vasquez. The original post had an eight-foot stockade with four log cabins and flat dirt roofs; later the US Army added stone and log buildings. The site now covers 3,800 acres (1,500 hectares) and is a state park and open-air museum.

The post began in 1842 as a trading station with a stockade and four log cabins. Later, Mormons purchased the site before the US Army took control in 1858 and used it as a military garrison until 1890.

The fort's name comes from Jim Bridger, who with Louis Vasquez set up the post in 1842; Bridger was called the "Daniel Boone" of the Rockies. He placed it on neutral ground between the Snakes and Crows to the north, the Oglalas and Sioux to the east, the Arapahoes and Cheyennes to the south, and the Utes to the southwest. The small town of Fort Bridger, Wyoming, takes its name from the fort.

Access is via exit 34 off Interstate 80, about 3 miles (5 kilometers) south of the highway. The museum opens daily from May through September, with limited hours during the rest of the year.

The grounds still hold the original Pony Express stable from the 1860s. Also visible are wall remnants from Mormon fortifications and structures from five different military building phases.