Family name กมลโรจน์ (Kamonrot 
, กมลโรจน์ , Kamonroj ) , all around the world, is a very rare cognomen. The surname กมลโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, กมลโรจน์ is the forename as well as the last name.