Hockessin ( /hoʊkɛsɨn/) is a census-designated place (CDP) in New Castle County, Delaware, United States. The population was 12,902 at the 2000 census. The place name may be derived from the Lenape word "hòkèsa" meaning "pieces of bark" or from a misspelling of "occasion," as pronounced by the Quakers who settled the area originally.
Hockessin is located at 39°47′2″N 75°41′9″W / 39.78389°N 75.68583°W / 39.78389; -75.68583 (39.784014, -75.685864).
According to the United States Census Bureau, the CDP has a total area of 10.0 square miles (26.0 km²), of which, 10.0 square miles (26.0 km²) of it is land and 0.10% is water.