Port Phillip is a large bay in southern Victoria, Australia. It is named after British colonial administrator Arthur Phillip and adjoins the city of Melbourne.

It may also locally refer to City of Port Phillip, local government area in Melbourne Port Phillip Association, company formed in June 1835 to settle land in what would become Melbourne Port Phillip Bay (Western Shoreline) and Bellarine Peninsula Ramsar Site Port Phillip Channel Deepening Project Port Phillip District, historical administrative division of the Colony of New South Wales, later to become the core of the state of Victoria Port Phillip District Special Surveys, part of land settlement legislation in 1841 Port Phillip Gazette, Melbourne newspaper 1838-1851 Port Phillip Heads Marine National Park Port Phillip Herald, Melbourne newspaper est. 1840 Port Phillip Prison, Truganina, Victoria Port Phillip Protectorate, 1839 attempt to protect Aborigines Port Phillip Arcade, a shopping arcade in the city of Melbourne

See also Port Philip, Nova Scotia