Deepdene is a suburb of Melbourne, Victoria, Australia, 9 km east from Melbourne's Central Business District. Its local government area is the City of Boroondara. At the 2011 Census, Deepdene had a population of 2,379.
Formerly a neighbourhood within the suburb of Balwyn, the Office of Geographic Names officially recognised Deepdene as a bounded locality in April 2010. A proposal to extend the suburb boundaries east to Balwyn Road and north to Belmore Road was voted down by Boroondara Council in April 2014.
Deepdene Post Office, on Whitehorse Road, opened on 14 July 1913.