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Cognomen Гуанг (Guang , Гуанг , Gouang) , worldwide, is a common last name. The family name Гуанг is characteristic of Malaysia, where it is quite a common surname, Singapore, where it is quite a rare surname, and China. In absolute terms, it most frequently occurs in China, Malaysia, and Indonesia. Likewise, Гуанг is the forename as well as the last name.