Surname ปรัชญ (ปรัชญ 
, Porachon , Prascharnan ) , in all the world, is an extremely rare last name. The cognomen ปรัชญ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, ปรัชญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ปรัชญ, Prascharnan, Porachon, Pratrairach | Thailand |
Prachy, Pradcharat, Pratchaphan, Pratchapohn, Pratcharee, Pratchawan, Pratchaya, and Pratchayan