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Cognomen Katsumata (カツマタ , Katsumata ) , across the world, is a rare last name. The last name Katsumata is habitual in Japan, where it is a rare surname, Brazil, where it is a very rare surname, and Singapore. In absolute terms, it is commonest in Japan, Brazil, and the United States. More prevalently, Katsumata is the forename as well as the last name.