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Last name Sangko (三哥 , Sangko , สังโฆ ) , throughout the world, is a rare surname. The cognomen Sangko is habitual in South-eastern Asia, particularly Indonesia, where it is a very rare surname, Thailand, and Malaysia. Not in comparison with a country's population, it most frequently occurs in Indonesia, Thailand, and China. More frequently, Sangko is the forename as well as the last name.