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Cognomen Bayard (Bayard , ביאר , Байяр ) , around the world, is quite a common surname. The last name Bayard is characteristic of France, where it is quite a rare surname, Haiti, and Switzerland. Not in comparison with a country's population, this name is the most popular in France, the United States, and Haiti. Much less frequently, Bayard is the forename as well as the last name.