The Charles Fehr Round Barn is a round barn in the U.S. state of Illinois near the Stephenson County village of Orangeville. The barn was built in 1912 by the team of Jeremiah Shaffer and the Haas Brothers about one half mile from the Illinois–Wisconsin state border. The building is the first round barn in the Stephenson County area, home to 31 round barns, with a hip roof. The building was added to the U.S. National Register of Historic Places in 1984.