Homebush Bay is a bay on the south bank of the Parramatta River, in the west of Sydney, Australia. The name is also sometimes used to refer to an area to the west and south of the bay itself, which was formerly an official suburb of Sydney, and has now become the suburbs of Sydney Olympic Park, Wentworth Point and part of the neighbouring suburb of Lidcombe, all part of the City of Parramatta. Homebush Bay is located west of the Sydney central business district.