Lanes Island is a small uninhabited island on the south fork of Suffolk County on Long Island, New York. It is part of the Town of Southampton.
Lanes Island is located at 40°50′6″N 72°31′12″W (40.835134, -72.520061).
40°50′06″N 72°31′12″W / 40.835°N 72.520°W / 40.835; -72.520