Delevan is a village in Cattaraugus County, New York, United States.

Delevan is located in northeastern Cattaraugus County in the east-central part of the town of Yorkshire at 42°29′N 78°29′W / 42.483°N 78.483°W / 42.483; -78.483 (42.4896, -78.4798).

[3] According to the United States Census Bureau, the village has a total area of 0.99 square miles (2.57 km2), all land.

Elton Creek joins Lime Lake Outlet west of the village.

29.6% of all households were made up of individuals, and 11.0% had someone living alone who was 65 years of age or older.