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Surname Kwang (Kwang , กวาง , กว้าง) , all over the world, is a common cognomen. The family name Kwang is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a common surname, Singapore, and Brunei, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Malaysia, Indonesia, and China. Much less frequently, Kwang is the forename as well as the last name.