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Family name Ferrin (Ferrin , 菲林 , 费林 ) , in all the world, is quite a common last name. The surname Ferrin is characteristic of Latin America and the Caribbean, particularly Uruguay, where it is quite a rare surname, Argentina, and Colombia. Measured by absolute frequency, it is the most numerous in the United States, Colombia, and Argentina. Very seldom, Ferrin is the forename as well as the last name.