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Surname Kossmann (Kossmann
, Koßmann
) , globally, is quite a common cognomen. The last name Kossmann is habitual in Germany, where it is quite a rare surname, Luxembourg, and Poland, where it is a rare surname. In absolute terms, the name is most common in Germany, Brazil, and Poland. Much less frequently, Kossmann is the forename as well as the last name.