Surname พงศ์วิริยะศิริ (พงศ์วิริยะศิริ 
) , in the world, is an extremely rare last name. The cognomen พงศ์วิริยะศิริ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| พงศ์วิริยะศิริ | Thailand |