The legend of the Pig Lady of Cannelton is a well-known local folklore from Beaver County, Pennsylvania. The story revolves around Barbara Davidson, an early resident of the area, who was murdered, and her body found in the crawlspace of her parents' home. Over time, the tale evolved, with some versions describing her as a headless ghost, while later versions added the eerie detail of her having a pig’s head instead of a human one.