Last name พรประเสริฐ (พรประเสริฐ 
, Pornprasert 
, Phonprasoet 
) , worldwide, is quite a rare cognomen. The family name พรประเสริฐ is characteristic of Thailand, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Also, พรประเสริฐ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พรประเสริฐ | Thailand |
| Pornprasert | United Kingdom, United States, Thailand |
| Phonprasoet | Malaysia, Thailand |
| Phornprasert | United States, Thailand |
Phonpasoet, Phonprasert, Phonprasoeot, Phonprasoreth, Phonprasroed, Phonprasroeth, Phonraeak, Phonrasuek, Phornphrasert, Phornprasurt, Poneprasert, Ponpraserd, Pornpraseat, Pornpraseattip, Pornpraserd, Pornpraserr, Pornprasertying, Pornrasert, Pronbuntherg, Pronprasert, Pruapasert, Prudboonthong, and Putraprasert