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Cognomen Kayser (Kayser
, カイザー
, Кайзер
, along with others...) , in all the world, is a common surname. The family name Kayser is habitual in Luxembourg, where it is quite a common surname, Germany, where it is quite a rare surname, and Kazakhstan. Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and Brazil. Very seldom, Kayser is the forename as well as the last name.