McArthur-Martin Hexadecagon Barn

McArthur-Martin Hexadecagon Barn is a historic barn located at Bloomville in Delaware County, New York, United States. It includes the 16-sided portion of the barn, calf wing and driveway, driveway ramp with stone embankment, two round silos and a frame addition. The barn was built in 1883 and is a three-story frame structure, 100 feet in diameter.

It was listed on the National Register of Historic Places in 1984.