Montmorency is a suburb of Melbourne, Victoria, Australia, 18 km north-east from Melbourne's Central Business District, located within the City of Banyule local government area. Montmorency recorded a population of 9,250 at the 2021 census. Montmorency was named after a local farm, Montmorency Estate, which in turn was named for the town of Montmorency, Val-d'Oise, where the French Enlightenment philosopher Jean-Jacques Rousseau lived briefly.