Family name ปิยะสัจจะเดช (ปิยะสัจจะเดช 
) , in all the world, is a very rare cognomen. The last name ปิยะสัจจะเดช is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ปิยะสัจจะเดช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ปิยะสัจจะเดช | Thailand |