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Family name 国 (Kuni , 国 , 국 ) , in all the world, is a widespread last name. The cognomen 国 is characteristic of China, where it is quite a common surname, South Korea, where it is quite a rare surname, and Qatar. Measured by absolute frequency, it is commonest in China, South Korea, and India. Also, 国 is the forename as well as the last name.