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Last name Douben (Douben , Дубень ) , around the globe, is a rare cognomen. The family name Douben is characteristic of Belarus, where it is quite a rare surname, Netherlands, where it is a rare surname, and Ukraine. Measured by absolute frequency, this name is the most popular in Eastern Europe, particularly Belarus, Russia, and Ukraine. Very seldom, Douben is the forename as well as the last name.