Cognomen กังวาฬศัพย์ (กังวาฬศัพย์ 
) , all over the world, is a very rare last name. The last name กังวาฬศัพย์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| กังวาฬศัพย์ | Thailand |