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Cognomen Gaban (Gaban , 加本 , Gabán ) , all around the world, is quite a rare surname. The surname Gaban is habitual in Malaysia, where it is quite a rare surname, Philippines, and Qatar, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Philippines, Indonesia, and Brazil. Much less frequently, Gaban is the forename as well as the last name.