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Surname Kels (Kels , Келс , Кельс ) , in the world, is a rare last name. The last name Kels is habitual in Botswana, where it is quite a rare surname, Azerbaijan, and Latvia, where it is a rare surname. In absolute terms, the name is most common in Germany, Cameroon, and Azerbaijan. Likewise, Kels is the forename as well as the last name.