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Cognomen Karp (Karp , Карп , カープ , among others...) , across the world, is a common family name. The cognomen Karp is habitual in Estonia, where it is quite a common surname, Moldova, where it is quite a rare surname, and Barbados. In absolute terms, the name is most common in the United States, Germany, and Poland. Likewise, Karp is the forename as well as the last name.