Cognomen ปิยสวัสดิ์ธาดา (ปิยสวัสดิ์ธาดา 
) , in the entire world, is an extremely rare family name. The last name ปิยสวัสดิ์ธาดา is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ปิยสวัสดิ์ธาดา | Thailand |