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Cognomen Kalkoen (Kalkun , Kalkoen , Krakun ) , all over the world, is a rare surname. The surname Kalkoen is habitual in Estonia, where it is quite a rare surname, Bulgaria, where it is a rare surname, and Indonesia, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Indonesia, Estonia, and the United Kingdom. Much less frequently, Kalkoen is the forename as well as the last name.