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Last name Khua (Khua , Хуа , คั่ว) , globally, is a rare cognomen. The family name Khua is habitual in Singapore, where it is quite a rare surname, Myanmar, where it is a rare surname, and Kyrgyzstan. Measured by absolute frequency, it is commonest in India, Myanmar, and Singapore. Likewise, Khua is the forename as well as the last name.