Family name ขวัญฤกษ์ (ขวัญฤกษ์ 
, Khwanrerk , Kwanreuk ) , around the world, is a rare cognomen. The cognomen ขวัญฤกษ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, ขวัญฤกษ์ is the forename as well as the last name.