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In all the world, Adler (Adler
, Адлер
, אדלר) is quite a rare boy's first name. The forename Adler is characteristic of the Democratic Republic of the Congo, where it is quite a rare boy's name, Peru, and Guatemala, where it is a rare male name. In absolute terms, it is the most numerous in the Democratic Republic of the Congo, Peru, and Brazil. More frequently, Adler is the last name as well as the forename.
Adler is also a name for the fictitious and mythical characters: .