Buchanan Historic District is a national historic district located at Buchanan, Botetourt County, Virginia. It encompasses 277 contributing buildings, 5 contributing sites, and 4 contributing structures in Buchanan and Pattonsburg on both sides of the James River. They include commercial, transportation-related, domestic, religious, and industrial resources associated with the community's development from the late-18th century through the late-20th century. Notable buildings include the Pattonsburg Mill (1838), Buchanan Presbyterian Church (1845), Trinity Episcopal Church (1842), Hotel Botetourt (1851), Sorrell House (1850), James Evans Mason Lodge (1884), Virginia Can Company complex (1903), "Oak Hill" (1840), Town Hall Municipal Building, Bank of Buchanan, Ransone's Drugstore, Buchanan T