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Surname Doong (Doong ) , in the world, is quite a rare cognomen. The surname Doong is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Philippines, and Singapore, where it is a rare surname. Not in comparison with a country's population, it is commonest in Philippines, Malaysia, and the United States. Much less frequently, Doong is the forename as well as the last name.