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Last name Regnier (رينيه , Regnier , Régnier ) , in all the world, is a common family name. The surname Regnier is characteristic of Martinique, where it is quite a common surname, France, and Luxembourg, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in France, the United States, and Canada. Much less frequently, Regnier is the forename as well as the last name.