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Cognomen Gumennyy (Гуменный , Gumennyy , Гуменныи ) , all over the world, is a rare last name. The cognomen Gumennyy is characteristic of Belarus, where it is a rare surname, Estonia, and Russia. Not in comparison with a country's population, it is commonest in Russia, Kazakhstan, and Belarus. Very seldom, Gumennyy is the forename as well as the last name.