Family name มั่นประเสริฐ (มั่นประเสริฐ, Manprasert 
) , globally, is a rare cognomen. The cognomen มั่นประเสริฐ is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Manprasert | Thailand, United States |