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Last name เขมทอง (Khemthong , Khemtong , เขมทอง ) , around the world, is quite a rare cognomen. The cognomen เขมทอง is characteristic of Laos, where it is quite a rare surname, Thailand, and Hungary, where it is a very rare surname. Measured by absolute frequency, it is commonest in Thailand, Laos, and the United States. Also, เขมทอง is the forename as well as the last name.