The Mountrail County Courthouse in Stanley, North Dakota was built in 1914 and served Mountrail County as its courthouse continuously since then. It was designed by architects Buechner & Orth in what can be termed Academic Revival architecture and/or Late 19th and 20th Century Revivals architecture. It was listed on the National Register of Historic Places in 1978; a 2.1-acre (0.85 ha) area was included in the listing.