Polygonal Barn may refer to:
United States (by state then town) Ben Colter Polygonal Barn, St. Marys Township, Adams County, Indiana, listed on the National Register of Historic Places (NRHP) Dyas Hexagonal Barn, Bellevue, Iowa, NRHP-listed Polygonal Barn, New Oregon Township, Cresco, Iowa, NRHP-listed W.J. Buck Polygonal Barn, Diagonal, Iowa, NRHP-listed McCoy Polygonal Barn, Hepburn, Iowa, NRHP-listed Polygonal Barn, Van Buren Township, Jackson County, Iowa, NRHP-listed Polygonal Barn, Lincoln Township, Johnson County, Iowa, NRHP-listed Thomas Reburn Polygonal Barn, New Albin, Iowa, NRHP-listed William Haner Polygonal Barn, Pisgah, Iowa, NRHP-listed Thomas Johnson Polygonal Barn, Wellman, Iowa, NRHP-listed Kuykendall Polygonal Barn, Romney, West Virginia, NRHP-listed
See also Octagon Barn (disambiguation) Round Barn (disambiguation)