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Cognomen Helmer (Helmer
, Гельмер
, Хельмер
) , all around the world, is a common surname. The surname Helmer is habitual in Honduras, where it is quite a rare surname, Denmark, and Germany. Measured by absolute frequency, it is commonest in the United States, Germany, and Brazil. Likewise, Helmer is the forename as well as the last name.