|Area:||2.1 km (0.8 sq mi)|
|Location:||31 km (19 mi) from Melbourne|
|Local Government Area:||City of Maroondah|
Croydon South is a suburb in Melbourne, Victoria, Australia, 30 km east from Melbourne's central business district. Its Local Government Area is the City of Maroondah. At the 2006 Census, Croydon South had a population of 4242.
Croydon South has a small shopping strip on the corner of Eastfield and Bayswater Roads incorporating over 20 retail outlets and a Post Office. It is close to the foothills of Mount Dandenong and the Dandenong Ranges.
Croydon South Post Office opened on 1 February 1961 as the suburb was developed.
In 2009 Term One, Croydon South Primary School will merge with Tinternvale Primary School. Unfortunately, falling enrolments, have necessitated the merger. The Education Department has agreed to a large increase in funding for the merger at the Tinternvale site and to bring the newly merged school into line with current standards.