Cognomen กอบวัฒนกุล (กอบวัฒนกุล 
, Korbwattanakul, Kopwatthanakun ) , globally, is a very rare family name. The surname กอบวัฒนกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| กอบวัฒนกุล, Kopwatthanakun | Thailand |
Kobwattanakul, Kobwattanakun, Kobwatthanaklul, Kobwatthanakul, Kobwatthanakun, Kobwatthankul, and Kopwattanakun