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Cognomen Sethaphong (เศรษฐพงศ์ , Sethaphong
) , in the world, is a rare family name. The family name Sethaphong is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. More prevalently, Sethaphong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เศรษฐพงศ์ | Thailand |
| Sethaphong | United States, Thailand |
Rerkkachornkiat, Griengvanich, Promrinthong, Phadungpisuth, and Wongpoovarak