Cairnlea is a suburb west of Melbourne, Victoria. It is located approximately 16 kilometers from the Melbourne CBD and is situated within the City of Brimbank local government area. The population of Cairnlea was 9,814 at the 2016 Census.
The suburb has a number of parks that have playgrounds, barbecues and sporting facilities. There are also wetlands in the area which are popular for birdwatching.
Commercial areas in Cairnlea include a shopping centre on Station Road.