Last name พิชญ์ไพโรจน์ (พิชญ์ไพโรจน์ 
) , in the world, is an extremely rare cognomen. The family name พิชญ์ไพโรจน์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| พิชญ์ไพโรจน์ | Thailand |