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Last name Klause (Klause
, Clausa
, Clausum) , in all the world, is quite a rare surname. The cognomen Klause is habitual in Germany, where it is quite a rare surname, Latvia, and Canada, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Germany, the United States, and Canada. Much less frequently, Klause is the forename as well as the last name.