Surname ปิยะหทัย (ปิยะหทัย 
, Piyahatai 
) , in the world, is an extremely rare family name. Predominantly, ปิยะหทัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ปิยะหทัย | Thailand |
| Piyahatai | United States, Thailand |
กิมสวัสดิ์, and พูลสวัสดิ์