Brinckerhoff is a hamlet and census-designated place in Dutchess County, New York, United States. The population was 2,900 at the 2010 census. It is part of the Poughkeepsie–Newburgh–Middletown, NY Metropolitan Statistical Area as well as the larger New York–Newark–Bridgeport, NY-NJ-CT-PA Combined Statistical Area. Brinckerhoff is in the northeastern corner of the town of Fishkill, northeast of the village of Fishkill.