Ferntree Gully is a suburb in Melbourne, Victoria, Australia, at the foothills of the Dandenong Ranges, 27 km east of Melbourne’s Central Business District, located within the City of Knox local government area. Ferntree Gully recorded a population of 27,398 at the 2021 census.

Ferntree Gully has a railway station located on Station Street, near the shopping district, which was previously known as Lower Ferntree Gully, followed by Fern Tree Gully, having been changed to the latter on 29 February 1972. The suburb is on the Belgrave railway line and it takes between 42 minutes (stopping all stations and then express service from Box Hill) to 60 minutes (all stations service) to Flinders Street, CBD.