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Family name Courtin (Courtin , ศาล , كورتين) , worldwide, is quite a common cognomen. The family name Courtin is habitual in Western Europe, particularly France, where it is quite a common surname, Belgium, where it is quite a rare surname, and Switzerland. In absolute terms, it is commonest in France, Belgium, and Russia. Much less frequently, Courtin is the forename as well as the last name.