Cognomen Phetprasong (Phetprasong 
) , worldwide, is a very rare family name. The surname Phetprasong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Phetprasong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phetprasong | United States, Thailand |
Tisirak, Piyaporn, Nathawit, and Kamalaporn