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