Last name ปิยะอธิวัฒน์ (ปิยะอธิวัฒน์ 
) , in the entire world, is an extremely rare family name. The surname ปิยะอธิวัฒน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ปิยะอธิวัฒน์ | Thailand |