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In the world, קלוס (Klos , Kloss , Closs ) is a rare mostly male, but seldom female given name. The forename קלוס is habitual in Azerbaijan, where it is quite a rare masculine name, Romania, where it is a rare boy's name, and Poland, where it is a very rare masculine name. Measured by absolute frequency, the name is most common in India, Azerbaijan, and Romania. Likewise, קלוס is the last name as well as the forename.
קלוס is also a name for the fictitious and mythical characters: .