Cognomen ช่างประเสริฐ (ช่างประเสริฐ, Changprasert 
) , in the entire world, is a rare last name. The surname ช่างประเสริฐ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Changprasert | United States, Thailand |