Family name กฤติยารัตน์ (กฤติยารัตน์ 
, Krittiyarat ) , throughout the world, is a rare last name. The last name กฤติยารัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Also, กฤติยารัตน์ is the forename as well as the last name.