Western Sydney University, formerly the University of Western Sydney, is an Australian multi-campus university in the Greater Western region of Sydney, Australia. The university in its current form was founded in 1989 as a federated network university with an amalgamation between the Nepean College of Advanced Education and the Hawkesbury Agricultural College.

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, and far western sub-regions within Sydney's metropolitan area and encompasses 13 local government areas.