|Area:||20.3 km (7.8 sq mi)|
|Local Government Area:||Shire of Cardinia|
|Federal Division:||La Trobe|
Emerald is a town and semi-rural locality in the Greater Melbourne area, Victoria, Australia, 44 km south-east from Melbourne's central business district, outside the urban area. Its Local Government Area are the Shires of Cardinia and Yarra Ranges. At the 2006 Census, Emerald had a population of 6135.
Emerald also includes Cardinia Reservoir, Melbourne's second largest reservoir.