Smithfield is a suburb of Sydney, in the state of New South Wales, Australia. Smithfield is located 31 kilometres (19 mi) west of the Sydney central business district, in the local government areas of the City of Fairfield and Cumberland Council. Located in the Greater Western Sydney region, the suburb is one of the largest in Fairfield City by area.

Cumberland Council, trading as Cumberland City Council, is a local government area located in the western suburbs of Sydney in the state of New South Wales, Australia. The Council was formed on 12 May 2016 from the merger of parts of the Cities of Auburn, Parramatta, and Holroyd.