New York State Route 36A

New York State Route 63
Map of western New York with NY 63 highlighted in red
Route information
Maintained by NYSDOT and the village of Medina
Length:	82.11 mi (132.14 km)
Existed:	1930 – present
Major junctions
South end:	NY 15 / NY 21 in Wayland
	US 20A / NY 39 in Geneseo US 20 in Pavilion NY 5 / NY 33 in Batavia NY 31 in Medina
North end:	NY 18 in Yates
Location
Counties:	Steuben, Livingston, Wyoming, Genesee, Orleans
Highway system
New York Highways Interstate U.S. State Reference Parkways ← NY 62A NY 63A → ← NY 36 NY 37 →

New York State Route 63 (NY 63) is a state highway in the western part of New York in the United States. It extends for 82.11 miles (132.14 km) in a generally southeast–northwest direction from an intersection with NY 15 and NY 21 in the village of Wayland in Steuben County to a junction with NY 18 in the town of Yates in Orleans County, 2 miles (3.2 km) south of the Lake Ontario shoreline. The route passes through the city of Batavia and enters or comes near several villages, including Dansville and Medina.

NY 63 was assigned as part of the 1930 renumbering of state highways in New York, but to a largely different routing than it follows today. The original alignment of NY 63 was identical to its current alignment between Mount Morris and Pavilion; however, the route deviated significantly from its modern routing past those points as it extended southwest from Mount Morris to Hinsdale and north from Pavilion to Hamlin. It was rerouted north of Pavilion c. 1939 and south of Mount Morris in the early 1940s. The latter realignment supplanted New York State Route 36A, a Dansville–Mount Morris highway assigned in 1930. For a brief period during the 1970s, NY 63 began in Dansville instead of Wayland.