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Last name คอง (Khong , คอง ) , globally, is a common family name. The surname คอง is habitual in Malaysia, where it is quite a common surname, Singapore, and Macao, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in South-eastern Asia, particularly Malaysia, Vietnam, and Indonesia. Very seldom, คอง is the forename as well as the last name.