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Cognomen Leduc (Leduc , Ледюк ) , across the world, is a common family name. The family name Leduc is characteristic of France, where it is quite a common surname, Canada, and Belgium, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in France, Canada, and the United States. Very seldom, Leduc is the forename as well as the last name.