Family name Chuwan (Chuwan 
, ชูวรรณ , ชูวัลย์ ) , across the world, is quite a rare cognomen. The last name Chuwan is habitual in Bhutan, where it is quite a common surname, Nepal, where it is quite a rare surname, and Thailand, where it is a rare surname. Not in comparison with a country's population, it is commonest in Southern Asia, particularly Nepal, Bhutan, and India. Very seldom, Chuwan is the forename as well as the last name.