Family name พงศ์สกุล (พงศ์สกุล 
, Pongsakul 
) , all over the world, is a rare cognomen. The surname พงศ์สกุล is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, พงศ์สกุล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พงศ์สกุล | Thailand |
| Pongsakul | United States, Thailand |
Phringsakun, and Prongsakul