The Bidjigal people are an Aboriginal Australian people whose traditional lands are modern-day western, north-western, south-eastern, and southern Sydney, in New South Wales, Australia. The land includes the Bidjigal Reserve, Salt Pan Creek and the Georges River. They are part of the Dharug language group, and there is debate as to whether the clan is part of the Dharug or Eora people.

Greater Western Sydney (GWS) is a large region of the metropolitan area of Greater Sydney, New South Wales (NSW), Australia that generally embraces the north-west, south-west, central-west, far western and the Blue Mountains sub-regions within Sydney's metropolitan area and encompasses 11 local government areas: Blacktown, Blue Mountains, Camden, Campbelltown, Cumberland, Fairfield, Hawkesbury, Liverpool, Parramatta, Penrith and Wollondilly. It includes Western Sydney, which has a number of different definitions, although the one consistently used is the region composed of ten local government authorities, most of which are members of the Western Sydney Regional Organisation of Councils (WSROC). The NSW Government's Office of Western Sydney calls the region "Greater Western Sydney".