Surname ปิยะโรจน์อุดม (ปิยะโรจน์อุดม 
) , across the world, is an extremely rare last name. The cognomen ปิยะโรจน์อุดม is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ปิยะโรจน์อุดม | Thailand |