Ratmalana is a suburb in Colombo District, Western Province, Sri Lanka.

Ratmalana is situated 14.6 km south of Colombo city centre.

Ratmalana is also the birthplace of Sir John Kotelawala, the third Prime Minister of Sri Lanka (then Ceylon) elected in 1953.

Maliban Biscuit Manufactories, one of the largest manufacturers, distributors and marketers of bakery products in Sri Lanka, is headquartered in Ratmalana.

This Western Province, Sri Lanka location article is a stub.