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Surname Kaven (Kaven , Кавен , Кафен ) , throughout the world, is quite a rare cognomen. The cognomen Kaven is habitual in Finland, where it is quite a rare surname, Papua New Guinea, and Norway, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Finland, Germany, and Papua New Guinea. Also, Kaven is the forename as well as the last name.