The Sioux Theatre is located in Sioux Rapids, Iowa, United States. The 375 seat movie theater was designed in the Moderne style by the Des Moines architectural firm Wetherell & Harrison. It was built by C.I. Hersom Construction. Initially owned by Don and Edna Gram, it opened in September 1946. Two Strong Lume-X projectors were added in 1974 when the theater was owned by Michael Berger. The Sioux Rapids Historical Association acquired the building and turned it into a museum. It was listed on the National Register of Historic Places in 2012.