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