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Surname גפן (Gefen , גפן , Geffen ) , in the world, is quite a common cognomen. The cognomen גפן is characteristic of Israel, where it is quite a common surname, Netherlands, and Belgium, where it is a rare surname. Not in comparison with a country's population, the name is most common in Israel, Netherlands, and the United States. Very seldom, גפן is the forename as well as the last name.