Mosman Council is a local government area on the Lower North Shore of Sydney, New South Wales, Australia.

The City of Sydney is the local government area covering the Sydney central business district and surrounding inner city suburbs of the greater metropolitan area of Sydney, New South Wales, Australia. Established by Act of Parliament in 1842, the City of Sydney is the oldest, and the oldest-surviving, local government authority in New South Wales, and the second-oldest in Australia, with only the City of Adelaide being older by two years.