Cognomen รัตนณรงค์ (Ratnarong 
, รัตนณรงค์ , Rattananarong ) , in the entire world, is a very rare last name. The last name รัตนณรงค์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, รัตนณรงค์ is the forename as well as the last name.