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Surname Hamann (هامان , Hamann , 哈曼 , along with others...) , in all the world, is a common cognomen. The surname Hamann is characteristic of Germany, where it is quite a common surname, Denmark, and Macao, where it is quite a rare surname. In absolute terms, it most frequently occurs in Germany, the United States, and France. Much less frequently, Hamann is the forename as well as the last name.