Cognomen จันทร์ยงค์ (จันทร์ยงค์ 
) , in the entire world, is a very rare last name. The last name จันทร์ยงค์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, จันทร์ยงค์ is the forename as well as the last name.