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Family name Chna (ชนะ , Chna , Шна ) , all over the world, is quite a rare cognomen. The last name Chna is habitual in Thailand, where it is quite a rare surname, Myanmar, where it is a rare surname, and Morocco. Measured by absolute frequency, it is commonest in Thailand, Russia, and Myanmar. More frequently, Chna is the forename as well as the last name.