Surname Wongseng (Wongseng 
) , in the world, is a very rare family name. The family name Wongseng is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Wongseng is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wongseng | Thailand, United States, Malaysia, India |