Cognomen ล้าน (Lan 
, Millon 
, Larn ) , across the world, is a widespread family name. The last name ล้าน is characteristic of Malaysia, where it is a common surname, Macao, and Vietnam, where it is quite a common surname (explore the name in all countries). In absolute terms, it is commonest in China, Malaysia, and Vietnam. Very seldom, ล้าน is the forename as well as the last name.