Shirley is a hamlet (and census-designated place) in Suffolk County, New York, United States. As of the 2010 census, the population of Shirley was 27,854. Shirley is notable as the western terminus of Atlantic Crossing 1, a major submarine telecommunications cable linking the United States with the UK, Germany, and the Netherlands.
Shirley is a community in the Town of Brookhaven, on the South Shore of Long Island. It is named for developer Walter T. Shirley, who had the vision in the 1950s to turn the area on Mastic Bay into an affordable enclave. Shirley's company priced its 4,000 four-room homes starting at $4,700, and lots were priced at $295.
Shirley is served by the Mastic–Shirley Long Island Rail Road station (the station was a compromise when both Mastic and Shirley campaigned for it). The 7th Precinct of the Suffolk County Police Department is located in Shirley. Most of Shirley, the southern part, is served by the William Floyd School District. The northern part is served by the Longwood Central School District.