Octagon barn

An octagon barn is a barn built in an octagonal shape, see.

As a proper name,  Octagon Barn or  Octagonal Barn may refer to:

United States

 * San Luis Obispo Octagon Barn, San Luis Obispo, California
 * Kinney Octagon Barn, Burr Oak, Iowa, listed on the U.S. NRHP
 * Secrest Octagon Barn, Downey, Iowa, NRHP
 * Fobes Octagon Barn, Lanesboro, Iowa, NRHP
 * Octagon Barn, Otter Township, Milo, Iowa, NRHP
 * Octagon Barn (Polk Township, Iowa),
 * Octagon Barn, Richland Township, Iowa, NRHP
 * Roberts Octagon Barn, Sharon Center, Iowa, NRHP
 * Grimes Octagon Barn, West Union, Iowa, NRHP
 * Thumb Octagon Barn, Gagetown, Michigan
 * Marsh Octagon Barn, NHRP in Wright County, Minnesota
 * J. F. Roberts Octagonal Barn, Rea, Missouri, NRHP
 * Octagonal Poultry House, Cold Spring, New Jersey, NRHP
 * Lattin-Crandall Octagon Barn, Catherine, New York, NRHP
 * Lunn-Musser Octagon Barn, Garrattsville, New York, NRHP
 * Mexico Octagon Barn, Mexico, New York, NRHP
 * Baker Octagon Barn, Richfield Springs, New York, NRHP
 * Rodman Octagonal Barn, Edgeley, North Dakota, NRHP
 * Gerhardt Octagonal Pig House, Gladstone, North Dakota, NRHP
 * Sylvanus Marriage Octagonal Barn, New Rockford, North Dakota, NRHP
 * James Wimer Octagonal Barn, Lookingglass, Oregon, NRHP
 * Harnsberger Octagonal Barn, Grottoes, Virginia, NRHP
 * Rankin Octagonal Barn, Silverton, West Virginia, NRHP
 * Tim Thering Octagon Barn, Plain, Wisconsin