Surname กุญจนาทคุณาวุฒิ (กุญจนาทคุณาวุฒิ 
) , worldwide, is a very rare last name. The family name กุญจนาทคุณาวุฒิ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| กุญจนาทคุณาวุฒิ | Thailand |