Surname จันทวรรณ (จันทวรรณ 
, Jantawan 
, Chantawan 
, among others...) , in the entire world, is quite a rare family name. The last name จันทวรรณ is characteristic of Togo, where it is quite a common surname, and Thailand, where it is quite a rare surname. Likewise, จันทวรรณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Juntawan, จันทวรรณ | Thailand |
| Jantawan | Thailand, United States |
| Chantawan | India, Thailand, United States |
| Chanthawan | Togo, Thailand |
Chantawon, Chanthavone, Chanthawon, and Janthawan