Family name กมลวัทน์ (กมลวัทน์ 
) , around the world, is a rare cognomen. The surname กมลวัทน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, กมลวัทน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| กมลวัทน์ | Thailand |