Deanside is a suburb in Melbourne, Victoria, Australia, 24 km west of Melbourne's Central Business District, located within the City of Melton local government area. Deanside recorded a population of 654 at the 2021 census. The suburb was gazetted by the Office of Geographic Names on 9 February 2017, following a proposal for eleven new suburbs by the City of Melton, and officially came into effect in mid-2017.Prior to the suburb's creation, the area was split between Rockbank and Plumpton.