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Surname Erawan (Erawan , เอราวัณ , เอราวรรณ ) , around the world, is quite a common last name. The family name Erawan is characteristic of South-eastern Asia, particularly Indonesia, where it is quite a rare surname, Thailand, where it is a rare surname, and Singapore. In absolute terms, it most frequently occurs in South-eastern Asia, particularly Indonesia, Thailand, and Malaysia. Very seldom, Erawan is the forename as well as the last name.