Last name พลาศัย (พลาศัย 
) , in the entire world, is a very rare surname. The surname พลาศัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, พลาศัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พลาศัย | Thailand |
| จงรัก พลาศัย TH |
|