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Cognomen 博夫 (博夫 , Bofu , Bough ) , across the world, is quite a common last name. The cognomen 博夫 is characteristic of Netherlands, where it is quite a rare surname, Botswana, and Algeria. Not in comparison with a country's population, it is commonest in the United States, Netherlands, and Algeria. Much less frequently, 博夫 is the forename as well as the last name.