Surname รัตโรจน์ (Ratroj 
, รัตโรจน์ ) , worldwide, is a very rare last name. The family name รัตโรจน์ is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Much less frequently, รัตโรจน์ is the forename as well as the last name.