Surname Thuyen (Thuyen 
, Thuyên ) , globally, is quite a rare cognomen. The last name Thuyen is habitual in Vietnam, where it is quite a rare surname, Malaysia, where it is a rare surname, and Australia, where it is a very rare surname. Measured by absolute frequency, it is commonest in Vietnam, Malaysia, and the United States. Likewise, Thuyen is the forename as well as the last name.