Cognomen จันทร์รงค์ (จันทร์รงค์ 
, Janrong ) , around the globe, is a very rare surname. The last name จันทร์รงค์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, จันทร์รงค์ is the forename as well as the last name.