Hampton Bays is a hamlet and census-designated place (CDP) in the Town of Southampton in Suffolk County, on Long Island, in New York. It is considered as part of the region of Long Island known as The Hamptons. The population was 13,603 at the 2010 census.

Southampton, officially the Town of Southampton, is a town in southeastern Suffolk County, New York, partly on the South Fork of Long Island. As of the 2020 U.S. census, the town had a population of 69,036. Southampton is included in the stretch of shoreline prominently known as the Hamptons.