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Family name Kier (Cor
, Kier
, 奇尔
) , in all the world, is a common surname. The last name Kier is habitual in Uruguay, where it is quite a common surname, Guatemala, where it is quite a rare surname, and Denmark. Measured by absolute frequency, it is the most numerous in the United States, Guatemala, and France. Also, Kier is the forename as well as the last name.