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Cognomen Романюк (Romaniuk , Романюк , Romanyuk ) , in all the world, is a common family name. The surname Романюк is characteristic of Eastern Europe, particularly Ukraine, where it is quite a common surname, Belarus, and Poland, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Eastern Europe, particularly Ukraine, Russia, and Belarus. Very seldom, Романюк is the forename as well as the last name.