Bellair, in Albemarle County, Virginia, is a historic farm. The farm is significant for the architecture of its buildings and for its association with owners important in the political, religious, and economic life of the state. A 250-acre portion of the farm was listed on the National Register of Historic Places in 1992. Martin Dawson, owner in 1819, was a co-founder of the Rivanna Navigation Company and eventually became the largest donor to the University of Virginia up to the time of his bequest. Its southern boundary is the Hardware River.