Last name ณรงค์เพชร (ณรงค์เพชร 
, Narongphet ) , all over the world, is a very rare cognomen. The cognomen ณรงค์เพชร is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ณรงค์เพชร is the forename as well as the last name.