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Cognomen Fenin (Fenin
, Фенин
, פנין
) , in the world, is quite a rare last name. The last name Fenin is characteristic of Eastern Europe, particularly Russia, where it is a rare surname, Ukraine, and Slovakia. Measured by absolute frequency, it is commonest in Russia, Ukraine, and France. Very seldom, Fenin is the forename as well as the last name.