Cognomen แก้วอรุณ (Kaewarun 
, แก้วอรุณ, Kaeoarun ) , around the world, is a very rare last name. The family name แก้วอรุณ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, แก้วอรุณ is the forename as well as the last name.