Southampton Campus was a rail station located along the Montauk Branch of the Long Island Rail Road. It was originally opened as Golf Grounds around April 1907 to serve sites such as the Shinnecock Hills Golf Club and National Golf Links of America. This station was closed around 1939.
In order to serve the Long Island University's Southampton College (now owned by Stony Brook University) it reopened on May 24, 1976. It was discontinued as a station stop and removed on March 16, 1998 due to low usage, along with a handful of other LIRR stations. The station only had an average daily ridership of 16 and the low ridership did not make it cost effective for high level platforms to be installed to accommodate new bilevel rail cars.
A temporary station was opened in June 2004 for the U.S. Open and was listed as Shinnecock Hills on special timetables. The LIRR also provided service for spectators traveling to the 1986 U.S. Open, when the station was called Southampton College.