Family name จนุรัตน์ (จนุรัตน์ 
) , throughout the world, is an extremely rare surname. The family name จนุรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much less frequently, จนุรัตน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| จนุรัตน์ | Thailand |