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Surname ณัฐธยา (Natthaya , ณัฐธยา , Naththaya ) , around the world, is a very rare cognomen. The family name ณัฐธยา is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname, and Thailand. Much more frequently, ณัฐธยา is the forename as well as the last name.