Family name Wong Seng (Wong Seng 
, ย่องเส็ง, วงษ์เส็ง 
) , globally, is a rare surname. The surname Wong Seng is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is an extremely rare surname. Likewise, Wong Seng is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wong Seng | Malaysia |
| วงษ์เส็ง | Thailand |