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Cognomen Hartwig (Hartwig
, Гартвиг
, Хартвиг
) , worldwide, is a common surname. The last name Hartwig is characteristic of Germany, where it is quite a common surname, Denmark, where it is quite a rare surname, and Austria. In absolute terms, this name is the most popular in Germany, the United States, and Brazil. Likewise, Hartwig is the forename as well as the last name.