Young Round Barn is a historic round barn at Greene in Chenango County, New York. It was built in 1914 and is a two story structure, with a large square entrance bay, and a diameter of 80 feet (24 m). It is covered by a conical, two slope gambrel roof topped with a circular cupola venting the loft and central silo. DeVern Bates also built the nearby Bates Round Barn.It was added to the National Register of Historic Places in 1984.