The Doniphan County Courthouse Square Historic District in Troy, Kansas is a 4.6 acres (1.9 ha) 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.

[1] It includes Italianate and Queen Anne architecture.

Its contributing buildings include:

This article about a property in Kansas on the National Register of Historic Places is a stub.