Federal Office Building (Cheyenne, Wyoming)

The Federal Office Building-Cheyenne, at 308 W. 21st St. in Cheyenne, Wyoming, is a Classical Revival-style building built in 1932. It was listed on the National Register of Historic Places in 2000.

It is a four-story masonry building 127x50 ft in plan, upon a full basement. It was built to a three-story height, with capacity to add four more stories. The fourth floor was added in 1937.