Fishkill or Fish Kill is derived from the Dutch term Vis Kill, meaning "creek full of fish".

Fishkill or Fish Kill may also refer to:

Communities Fishkill (town), New York, a town in Dutchess County Fishkill, New York, a village within the above town East Fishkill, New York, a town in Dutchess County

Other Fish kill, a localized die-off of fish and/or other aquatic populations Fishkill Correctional Facility, a medium security prison in Dutchess County Fishkill Creek, a tributary of the Hudson River Fishkill Farms, Dutchess County, New York

See also East Fishkill Fire District, a volunteer firefighting organization in southern Dutchess County