Gulf St Vincent, sometimes referred to as St Vincent Gulf or Gulf of St Vincent, is the eastern of two large inlets of water on the southern coast of Australia, in the state of South Australia, the other being the larger Spencer Gulf, from which it is separated by Yorke Peninsula. On its eastern side the gulf is bordered by the Adelaide Plains and the Fleurieu Peninsula.
To the south it is defined by a line from Troubridge Point on Yorke Peninsula to Cape Jervis on Fleurieu Peninsula. Its entrances from the southwest are from Investigator Strait, and to the southeast from Backstairs Passage, which separate Kangaroo Island from the mainland. Adelaide lies midway along the gulf\\\'s east shore.
Other towns located on the gulf include, from west to east, Edithburgh, Stansbury, Port Vincent and Ardrossan on the west coast, and Port Wakefield and Normanville on the east coast.
