The Montgomery Ward Building is a historic department store building located at Lewistown, Mifflin County, Pennsylvania. The east facade faces the Mifflin County Courthouse on Monument Square. It was built in 1929 in the Art Deco style, and consists of the store building and attached office building. The store is two-stories, with a mezzanine level and measures approximately 40 feet by 150 feet. The office building is two-stories and measures approximately 30 feet by 145 feet. They are both of steel frame construction with brick exterior walls and feature terra cotta ornamentation. It was one of the initial retail outlets constructed by the Montgomery Ward Company.