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Cognomen Welk (Welke
, Welk
, Велк
) , in the world, is quite a common family name. The cognomen Welk is habitual in Germany, where it is quite a rare surname, Australia, where it is a rare surname, and the United States. Measured by absolute frequency, it is commonest in Germany, the United States, and Brazil. Very seldom, Welk is the forename as well as the last name.