Doniphan County Courthouse Square Historic District

The Doniphan County Courthouse Square Historic District in Troy, Kansas is a 4.6 acre historic district which was listed on the National Register of Historic Places in 2002. It is roughly bounded by E. Walnut, E Chestnut, S. Main, and S. Liberty Streets. The district included 17 contributing buildings and one contributing site.

It includes Italianate and Queen Anne architecture.

Its contributing buildings include:
 * Doniphan County Courthouse (1906), which was previously separately listed on the National Register.
 * Cyrus Leland Store Building (1911), 102 E. Walnut
 * McClellan Mercantile Building (1900), 120 E. Walnut
 * Mabel Perry Campbell House (c.1912), 115 E. Chestnut
 * Sol Miller Building (c.1870), 101 S. Main
 * Boder Brothers Bank/First National Bank (1872), 137 S. Main