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Surname Merkin (Merkin
, 莫金
, 默金
) , in all the world, is quite a rare last name. The cognomen Merkin is characteristic of Israel, where it is quite a rare surname, Estonia, where it is a rare surname, and Russia. Measured by absolute frequency, it is commonest in Russia, the United States, and Ethiopia. Much less frequently, Merkin is the forename as well as the last name.