Amityville is the westernmost station on the Babylon Branch of the Long Island Rail Road in Suffolk County.

It was originally built in 1868 by the South Side Railroad of Long Island, then replaced by a brick station in 1889.

[2] From 1890 to 1919, it was a stop for the Huntington Railroad cross-island trolley line, which included a bridge over the tracks on the west side of the station.

[3] The station building was completely demolished in 1964 and on October 25, 1968, a temporary station building was opened with high-level side platforms to accommodate the new M1 cars and facilitate the construction of the new grade separated Babylon Branch.

In 2023, the MTA agreed to make the Amityville, Copiague and Lindenhurst stations wheelchair-accessible to settle a lawsuit.