The Band Box Diner is the oldest operating diner in the Elliot Park neighborhood of Minneapolis, Minnesota. The restaurant, located at 729 South 10th Street, is modeled on the White Castle chain, but is entirely locally built. It was opened by Harry Wyman and his wife Bert in 1939. They eventually built 15 Band Boxes in the chain by 1950. All of the restaurants were in Minneapolis, with the exception of one in Columbia Heights.