New York State Route 78 (NY 78) is a 73.49-mile (118.27 km) state highway in western New York in the United States. While it is signed north–south, the southern portion runs in an east–west direction across Wyoming and Erie counties, from its beginning at a junction with NY 19 north of the village of Gainesville to the village of East Aurora. The part of the route north of East Aurora follows a generally north–south alignment to an intersection with NY 18 in the Niagara County town of Newfane (at the hamlet of Olcott), just south of the Lake Ontario shoreline. The route is most closely identified in the region with Transit Road, a major north–south trunk road through the center of Erie and Niagara counties; however, NY 78 does not follow Transit Road for its entire length, nor does Transit