The Huntington Railroad was established on July 19, 1890 with a trolley line between Huntington Village and Halesite on Long Island, New York. It was eventually extended to Huntington Railroad Station, then along what is today mostly NY 110 through Melville, Farmingdale, and as far south as the docks of Amityville. Huntington Railroad had only one line throughout its history, although the length varied through the years.

Halesite is a hamlet and census-designated place (CDP) in the Town of Huntington in Suffolk County, on the North Shore of Long Island, in New York, United States. The population was 2,498 at the 2010 census.