Family name พลแก้ว (Phonkaew 
, พลแก้ว, Ponkaew 
) , across the world, is a rare surname. The family name พลแก้ว is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, พลแก้ว is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phonkaew | China, Thailand |
| Ponkaew | United States, Thailand |