Last name รัตนเวโรจน์ (รัตนเวโรจน์ 
) , globally, is an extremely rare cognomen. The cognomen รัตนเวโรจน์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, รัตนเวโรจน์ is the forename as well as the last name.