Cognomen Wongsungnoen (Wongsungnoen 
) , worldwide, is a very rare family name. The cognomen Wongsungnoen is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Wongsungnoen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wongsungnoen | Thailand |