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