Last name ปิยะธรรมสวัสดิ์ (ปิยะธรรมสวัสดิ์ 
) , all around the world, is a very rare family name. The last name ปิยะธรรมสวัสดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ปิยะธรรมสวัสดิ์ | Thailand |