Hamilton Round Barn

{{Use mdy dates|date=March 2025}}

{{Infobox NRHP

| name = Hamilton Round Barn

| nrhp_type =

| image = Hamilton Round Barn.jpg

| caption =

| location = County Route 11, near Mannington, West Virginia

| coordinates = {{coord|39|30|59.04|N|80|20|15.72|W|display=inline,title}}

| locmapin = West Virginia#USA

| built = 1911

| builder = Hamilton, A.A.

| architecture = Round Barn

| added = July 9, 1985

| area = {{convert|1|acre}}

| mpsub = {{NRHP url|id=64000963|title=Round and Polygonal Barns of West Virginia TR}}

| refnum = 85001548{{NRISref|version=2010a}}

}}

Hamilton Round Barn is a historic round barn located near Mannington, Marion County, West Virginia. It was built in 1911, and is circular in shape, measuring 66 feet in diameter and 75 feet high at the center. It features a gambrel roof topped by a six-sided cupola. The barn has horizontal clapboard siding of poplar, painted white, and a slate roof. In 1985, it was one of only five round and polygonal barns standing in West Virginia. The barn was purchased by the West Augusta Historical Society in 1983, and is operated as a museum.{{cite web|url=https://wvculture.org/wp-content/uploads/2021/03/Hamilton-round-barn.pdf|title=National Register of Historic Places Inventory Nomination Form: Hamilton Round Barn|date=n.d.|accessdate=2011-08-05 |author=unknown|publisher=State of West Virginia, West Virginia Division of Culture and History, Historic Preservation}}

It was listed on the National Register of Historic Places in 1985.