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Family name Gallion (Gallion , Galion ) , around the world, is quite a common last name. The family name Gallion is habitual in Luxembourg, where it is quite a rare surname, the Democratic Republic of the Congo, and the United States, where it is a rare surname. Measured by absolute frequency, it is commonest in the United States, the Democratic Republic of the Congo, and France. Very seldom, Gallion is the forename as well as the last name.