Cognomen ดรณิรัตน์ (ดรณิรัตน์ 
) , around the globe, is an extremely rare last name. The cognomen ดรณิรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, ดรณิรัตน์ is the forename as well as the last name.