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Cognomen Maniac (Manyak , Maniac , Maniaque ) , around the world, is quite a rare surname. The cognomen Maniac is characteristic of Indonesia, where it is quite a rare surname, Slovakia, where it is a rare surname, and Hungary. In absolute terms, it most frequently occurs in Indonesia, India, and the United States. More prevalently, Maniac is the forename as well as the last name.