Westsylvania was a name suggested for an unrealized 14th state of the United States; it was to include southwestern Pennsylvania, the western panhandle of Maryland, nearly the whole of what is now West Virginia, a small part of what is now Virginia, and a small part of eastern Kentucky. Westsylvania's creation was petitioned in October 1775 by settlers in that region of the Second Continental Congress, believing the state governments apathetic to their concerns; however, shortly thereafter, the American Revolutionary War broke out and, in the interest of unity between the states, Congress chose to ignore their request.

See also: Westsylvania Heritage Corporation, Whiskey Rebellion