John Donelson (1718–1785) was an American frontiersman, ironmaster, politician, city planner, and explorer. After founding and operating what became Washington Iron Furnace in Franklin County, Virginia for several years, he moved with his family to Middle Tennessee which was on the developing frontier. There, together with James Robertson, Donelson co-founded the frontier settlement of Fort Nashborough. This later developed as the city of Nashville, Tennessee.

Washington Iron Furnace is an historic iron furnace, located in Rocky Mount, Franklin County, Virginia. The granite furnace was built around 1770, and measures 30 feet high on its south face. It helped establish industry in the county, and was listed on the National Register of Historic Places in 1973.