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Family name 하이 (High , Raí , 하이) , in the world, is a common cognomen. The last name 하이 is characteristic of the United States, where it is quite a rare surname, Laos, and the United Kingdom. Measured by absolute frequency, it is commonest in the United States, the United Kingdom, and Bangladesh. Much less frequently, 하이 is the forename as well as the last name.