Greystanes is a suburb of Sydney, Australia, located 28 kilometres west of the Sydney central business district, in the local government area of the City of Parramatta. It is part of the Greater Western Sydney region. Greystanes is bounded by the Cumberland Highway to the north, the M4 Motorway to the south, the Great Western Highway to the east and the Prospect Highway to the west. The suburb is mainly residential, with some commercial and industrial areas. The main shopping centre is located on Pembroke Road. Greystanes is home to a number of parks and reserves, including Greystanes Park, Greystanes Reserve, and Prospect Creek Reserve.