Surname เจิง (เจิง 
, Choeng 
) , around the world, is a rare last name. The surname เจิง is characteristic of Macao, where it is quite a rare surname, Malaysia, where it is a rare surname, and Thailand. Measured by absolute frequency, it is commonest in Thailand, Malaysia, and China. Much less frequently, เจิง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เจิง | Thailand |
| Choeng | Cambodia, China, Macao, Thailand, Malaysia |