Glen Iris is a suburb in Melbourne, Victoria, Australia, 10 kilometres south-east of Melbourne's Central Business District, located within the Cities of Boroondara and Stonnington local government areas. Glen Iris recorded a population of 26,131 at the 2021 census. Glen Iris had been Melbourne's geographical centre of population from the 1990s to the 2020s, with urban sprawl seeing Melbourne's centre of population shifting to Camberwell in the 2020s.