Boulder is a town in Garfield County, Utah, United States, 27 miles (44 km) northeast of Escalante on Utah Scenic Byway 12 at its intersection with the Burr Trail. As of the 2020 census, the town population was 227.

Boulder, quite isolated until the Civilian Conservation Corps built a road to Escalante, did not get electric power until 1947. The town marks the western terminus of Burr Trail, a mostly paved road that runs eastward through spectacular red rock country to the Waterpocket Fold in Capitol Reef National Park. Boulder is the home of Anasazi Indian State Park.