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In the world, Happ (Hap , Happ , 哈普 ) is quite a rare epicene first name. The forename Happ is characteristic of Egypt, where it is a rare unisex name, Indonesia, and Vietnam, where it is a very rare epicene name. In absolute terms, it is commonest in Indonesia, India, and Egypt. More frequently, Happ is the last name as well as the forename.