The Kuykendall Polygonal Barn was an early 20th-century polygonal barn in the South Branch Potomac River valley near Romney in Hampshire County, West Virginia. The Kuykendall Polygonal Barn was the only 15-sided barn built in West Virginia, and one of only a few such known to have been constructed in the United States. The barn utilized a number of sophisticated technological innovations not found in West Virginia's other round and polygonal barns. The Kuykendall Polygonal Barn was listed on the National Register of Historic Places on 9 July 1985.