Family name พงศ์ศิริสกุล (พงศ์ศิริสกุล 
) , all around the world, is an extremely rare cognomen. The surname พงศ์ศิริสกุล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| พงศ์ศิริสกุล | Thailand |