Throughout the world, พลศิลา (Ponsila 
, พลศิลา , Phonsila ) is a very rare feminine first name. The forename พลศิลา is habitual in Southern Asia, particularly India, where it is an extremely rare feminine name. More prevalently, พลศิลา is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ponsila | Philippines, India, Thailand, Finland |
| Pholsila, พลศิลา, Phonsila | Thailand |