Cognomen ก้วน (Kuan 
, ก้วน) , in the entire world, is a widespread last name. The surname ก้วน is habitual in Macao, where it is a common surname, Malaysia, and Brunei, where it is quite a common surname (explore the name in all countries). In absolute terms, the name is most common in Malaysia, China, and Mozambique. Very seldom, ก้วน is the forename as well as the last name.