Cognomen คุณศักดิ์ (คุณศักดิ์ 
, Khunsak ) , all over the world, is a rare family name. The surname คุณศักดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, คุณศักดิ์ is the forename as well as the last name.