| Mexico Octagon Barn | |
| Location: | 5276 Ames St., Mexico, New York |
| Coordinates: | 43.4522°N -76.2419°W |
| Built: | 1880 |
| Architecture: | Octagon |
| Added: | June 20, 1991 |
| Area: | less than one acre |
| Refnum: | 91000527 |
Mexico Octagon Barn is a historic octagon-shaped barn located at Mexico in Oswego County, New York. It is a wood frame one story structure with a fieldstone foundation built about 1880.[1]
It was listed on the National Register of Historic Places in 1991.