Harkness is a suburb in Melbourne, Victoria, Australia, 38 km North west of Melbourne's Central Business District, located within the City of Melton local government area. Harkness recorded a population of 12,463 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. The new name officially took effect from 23 August 2017.