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Last name Kleinberg (Klein , Kleinberg , Клейнберг ) , throughout the world, is a widespread family name. The last name Kleinberg is characteristic of Germany, where it is a common surname, Luxembourg, and Israel, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is commonest in Germany, the United States, and France. Very seldom, Kleinberg is the forename as well as the last name.