Pine Valley is a hamlet and census-designated place in the towns of Catlin and Veteran in Chemung County, New York, United States. The population was 813 at the 2010 census.
Pine Valley is located in northwestern Chemung County on the border of the towns of Catlin (to the west) and Veteran (to the east). It is on the west side of the valley of Catharine Creek, a northward-flowing tributary of Seneca Lake, one of the Finger Lakes. New York State Route 14 passes through the center of Pine Valley, leading south to Horseheads and to downtown Elmira. To the north Route 14 leads to Montour Falls and to Watkins Glen.
According to the United States Census Bureau, the Pine Valley CDP has a total area of , of which is land and , or 1.12%, is water.
The school district is Horseheads Central School District.