Last name จรัสโรจน์ (จรัสโรจน์ 
, Charasroj , Jaratroj ) , in the entire world, is a very rare family name. The family name จรัสโรจน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, จรัสโรจน์ is the forename as well as the last name.