Centerport is a hamlet and census-designated place in Suffolk County, New York, on the notably affluent North Shore of Long Island. Formerly known as Little Cow Harbor in about 1700, as Centreport in 1836, and as Centerport after 1895, the name refers to its geographic position midway between the east and west boundaries of the town of Huntington. As is common among the many beachfront locations on Long Island's North Shore, Centerport has developed a large boating and sailing culture. An important part of this culture is the Centerport Yacht Club, which was founded in 1947 and has served as the social and athletic focal point for the boating community in both Centerport and its surrounding areas. The yacht club sponsors a variety of racing fleets and regattas every year generally beginning in the late spring and ending mid-autumn.