Windego Park Auditorium/Open Air Theater is an amphitheater in Anoka, Minnesota, located on the Rum River. The theater was built in 1914 and was spurred by the City Beautiful movement, as well as Anoka citizens' interest in outdoor entertainment and recreation. Its main organizer, Thaddeus P. Giddings, was a promoter of music education and had been organizing community singalongs in the summer of 1913. The theater is listed on the National Register of Historic Places.
