New York State Route 19 (NY 19) is a north–south state highway in Western New York in the United States. It is the longest state highway in that region, and the only other one besides NY 14 to completely transect the state from the Pennsylvania state line to the shore of Lake Ontario. It continues south into Pennsylvania as Pennsylvania Route 449 (PA 449) and ends at an intersection with the Lake Ontario State Parkway just south of the lakeshore in Hamlin. NY 19 does not serve any major cities or metropolitan areas and remains a two-lane rural road for almost its entire length. However, it follows the Genesee River for much of its lower length, and offers easy access to the gorges of Letchworth State Park midway along its route.