Last name ปิยฤทธิพงศ์ (ปิยฤทธิพงศ์ 
) , in the entire world, is a very rare family name. The family name ปิยฤทธิพงศ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ปิยฤทธิพงศ์ | Thailand |