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Surname Marcion (Marcion , Mārcus) , in the entire world, is a rare family name. The family name Marcion is habitual in Saint Lucia, where it is quite a common surname, France, where it is a very rare surname, and Germany. Not in comparison with a country's population, it most frequently occurs in Saint Lucia, France, and the United States. Also, Marcion is the forename as well as the last name.