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Surname Walon (Wallon , Walon ) , around the world, is quite a rare last name. The cognomen Walon is characteristic of Belgium, where it is quite a rare surname, France, and Sweden, where it is a rare surname. Not in comparison with a country's population, it is commonest in Western Europe, particularly France, Belgium, and Germany. Very seldom, Walon is the forename as well as the last name.