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Cognomen Dermawan (Dermawan ) , across the world, is a common family name. The family name Dermawan is habitual in South-eastern Asia, particularly Indonesia, where it is quite a common surname, Malaysia, where it is a rare surname, and Singapore. Not in comparison with a country's population, it is commonest in Indonesia, Malaysia, and the United States. Very seldom, Dermawan is the forename as well as the last name.