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Cognomen Muan (Muan , มวล , ม่วน) , in the entire world, is quite a common last name. The surname Muan is habitual in Myanmar, where it is quite a rare surname, Malaysia, and Norway, where it is a rare surname. Measured by absolute frequency, it is commonest in South-eastern Asia, particularly Myanmar, Malaysia, and Philippines. Likewise, Muan is the forename as well as the last name.