| William Fisher Polygonal Barn | |
| Location: | County Road 850N just east of its junction with County Road 800E, west of Bowers, Sugar Creek Township, Montgomery County, Indiana |
| Coordinates: | 40.1606°N -86.7475°W |
| Architect: | Dain, Ellsworth |
| Architecture: | Ten-sided barn |
| Added: | April 2, 1993 |
| Area: | less than one acre |
| Mpsub: | Round and Polygonal Barns of Indiana MPS |
| Refnum: | 93000188 |
William Fisher Polygonal Barn, also known as the Fisher-Dykes Barn, is a historic 10-sided barn located in Sugar Creek Township, Montgomery County, Indiana. It was built in 1914, and is a two-story, balloon frame structure on a concrete foundation. Two of the 10 sides are 28 feet wide, while the 8 remaining sides are 16 feet wide. The barn is topped by a sectional two-pitched gambrel roof with flared eaves. Atop the roof is a six-sided cupola.[1]
It was listed on the National Register of Historic Places in 1993.