Cognomen Wongwaiyakhajorn (Wongwaiyakhajorn 
) , throughout the world, is a very rare surname. The cognomen Wongwaiyakhajorn is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wongwaiyakhajorn | United States, Thailand |