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Cognomen Heydt (海特 , Heydt , ヘイト) , globally, is quite a rare family name. The cognomen Heydt is habitual in Germany, where it is quite a rare surname, Belgium, where it is a rare surname, and the United States. Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and Brazil. Much less frequently, Heydt is the forename as well as the last name.