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Cognomen 科泽 (Koser , 科泽 , Coser ) , in the world, is a common family name. The cognomen 科泽 is characteristic of Estonia, where it is quite a rare surname, Moldova, and Slovenia. Measured by absolute frequency, this name is the most popular in India, Brazil, and Pakistan. Much less frequently, 科泽 is the forename as well as the last name.