Family name จันทร์รุ้ง (Chanrung 
, จันทร์รุ้ง) , globally, is a very rare last name. The cognomen จันทร์รุ้ง is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is an extremely rare surname. Much less frequently, จันทร์รุ้ง is the forename as well as the last name.