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