Cognomen กฤตเพชร (Kritpet 
, กฤตเพชร , Kirdphet ) , across the world, is a very rare last name. The last name กฤตเพชร is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, กฤตเพชร is the forename as well as the last name.