Harrisonville Courthouse Square Historic District is a national historic district located at Harrisonville, Cass County, Missouri.

Notable buildings include the Cass County Courthouse (1897), New Method Laundry (1929), Cass County Democrat (c. 1901), Wooldridge Building (before 1885), Bank of Harrisonville (1900-1901), Wirt's Opera House Building (1907; 1940-alterations), Post Office Building (1925), Emmons Building/Bowman Building (1887), Evans Building (1890), White Motor Company (c. 1930-1934), Stephen Stuart "Racket" Store (c. 1903-1908), First National Bank of Harrisonville (c. 1886-1891; c. 1920, 1980s alterations), and Deacon Building (1892).

[2] It was listed on the National Register of Historic Places in 1994.

[1] The Cass County Courthouse was designed in 1895 by Kansas City, Missouri, architect Walter C. Root.

This article about a property in Cass County, Missouri on the National Register of Historic Places is a stub.