Cognomen คลองขวัญ (คลองขวัญ 
, Klongkwan , Khloemkhwan ) , in the world, is an extremely rare last name. The surname คลองขวัญ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, คลองขวัญ is the forename as well as the last name.