Cognomen Wangphoomyai (Wangphoomyai 
) , all over the world, is an extremely rare surname. The cognomen Wangphoomyai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Likewise, Wangphoomyai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wangphoomyai | Thailand |