Last name พณิชย์ไพโรจน์ (พณิชย์ไพโรจน์ 
) , globally, is an extremely rare family name. The surname พณิชย์ไพโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| พณิชย์ไพโรจน์ | Thailand |