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Surname Sieber (Sieber , 塞伯 , Зибер ) , throughout the world, is a common cognomen. The surname Sieber is habitual in Western Europe, particularly Switzerland, where it is quite a common surname, Liechtenstein, and Germany (explore the name in all countries). In absolute terms, the name is most common in Germany, Switzerland, and the United States. Much less frequently, Sieber is the forename as well as the last name.