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Cognomen Bullen (Bullen , 布伦 , 布倫 ) , in the entire world, is quite a common family name. The surname Bullen is habitual in Grenada, where it is quite a common surname, Barbados, and Australia, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in the United Kingdom, the United States, and Australia. Very seldom, Bullen is the forename as well as the last name.