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Cognomen Bartram (Bartram , ברטרם , Бартрам ) , all over the world, is quite a common surname. The cognomen Bartram is habitual in Guernsey, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and Australia. In absolute terms, it is the most numerous in the United Kingdom, the United States, and Germany. Very seldom, Bartram is the forename as well as the last name.