Family name น้ำเพ็ชร (Namphet 
, Nampetch 
, Namphetch ) , all around the world, is a rare surname. The family name น้ำเพ็ชร is habitual in Thailand, where it is a rare surname, and Australia, where it is a very rare surname. More frequently, น้ำเพ็ชร is the forename as well as the last name.