Cognomen เพ็ชรสกุล (เพ็ชรสกุล 
, Pecthsakun ) , throughout the world, is a rare last name. The family name เพ็ชรสกุล is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, เพ็ชรสกุล is the forename as well as the last name.