Folsom Field, Football stadium in Boulder, United States

Folsom Field is a horseshoe-shaped outdoor college football stadium on the University of Colorado campus in Boulder, opening to the north. Its field, marked with white yard lines and the word "COLORADO", returned to artificial turf in 2025 and sits at 5,360 feet. Seating runs around three sides, with a six-level press box on the west grandstand and the Dal Ward Athletic Center at the north end. Capacity is 53,613.

The stadium opened in October 1924 and received its name in 1944 to honor Frederick Folsom, a former head coach of the Colorado Buffaloes. This renaming marked a key moment in the university's sports history and traditions.

The stadium's unofficial name, Norlin Stadium, was used against the wishes of university president George Norlin. The south end zone appeared in the opening and closing credits of the late-1970s TV show Mork and Mindy, set in Boulder. Folsom Field is also the finish line of the Bolder Boulder 10K run.

The horseshoe opens to the north, where the Dal Ward Athletic Center stands; the six-level press box sits atop the west grandstand in front of Balch Fieldhouse. The field lies at 5,360 feet, so visitors should allow for altitude. The Bolder Boulder 10K finishes here, and the south end zone appears in the credits of Mork and Mindy.

Folsom Field sits at 5,360 feet (1,635 m), the third-highest stadium in FBS football behind Wyoming and Air Force. The south end zone appeared in the opening and closing credits of the late-1970s TV show Mork and Mindy, which was set in Boulder.