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In the world, Kiefer (Kiefer , كيفر , Кифер ) is a rare principally masculine, but scarcely female first name. The forename Kiefer is characteristic of New Zealand, where it is a rare masculine name, Singapore, and Bolivia. In absolute terms, it is commonest in the United States, the United Kingdom, and Philippines. Much more prevalently, Kiefer is the last name as well as the forename.
Kiefer is also a name for the fictitious and mythical characters: .