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Family name Gua (我 , Gua , غوا) , in the world, is a widespread surname. The cognomen Gua is habitual in China, where it is quite a common surname, Guatemala, where it is quite a rare surname, and Mauritius. Not in comparison with a country's population, it is commonest in China, India, and Guatemala. Very seldom, Gua is the forename as well as the last name.