Cognomen ทองจาง (ทองจาง 
) , across the world, is a very rare surname. The surname ทองจาง is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, ทองจาง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ทองจาง | Thailand |