Great Neck is a region on Long Island, New York, that covers a peninsula on the North Shore and includes nine villages, among them Great Neck, Great Neck Estates, Great Neck Plaza, Kings Point, and Russell Gardens, and a number of unincorporated areas, as well as an area south of the peninsula near Lake Success and the border territory of Queens. The incorporated village of Great Neck had a population of 9,989 at the 2010 census, while the larger Great Neck area comprises a residential community of some 40,000 people in nine villages and hamlets in the town of North Hempstead, of which Great Neck is the northwestern quadrant. Great Neck has five ZIP Codes (11020–11024), which are united by a park district, one library district, and one school district.

The North Shore of Long Island is the area along the northern coast of New York's Long Island bordering Long Island Sound. Known for its extreme wealth and lavish estates, the North Shore exploded into affluence at the turn of the 20th century, earning it the nickname the Gold Coast. Historically, this term refers to the affluent coastline neighborhoods of the towns of North Hempstead and Oyster Bay in Nassau County and Huntington in Suffolk County. Some definitions may also include the parts of Smithtown that face the Sound. The region is also largely coextensive with the Gold Coast region of Long Island, though this region excludes Smithtown, as the easternmost Gold Coast mansion is the Geissler Estate, located just west of Indian Hills Country Club in the Fort Salonga section of Huntington.