New York State Route 439 (NY 439) was an east–west state highway on Staten Island in New York in the United States. The western terminus of the route was at the Goethals Bridge, where it continued into New Jersey as its Route 439. Its eastern terminus was at the Staten Island Ferry terminal in the St. George neighborhood. In between, NY 439 followed the Staten Island Expressway, Forest Avenue, Victory Boulevard, and Bay Street.