Surname พิชญกาญจน์ (Pitchayakan 
, พิชญกาญจน์ , Phichayakarn ) , throughout the world, is an extremely rare last name. The cognomen พิชญกาญจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, พิชญกาญจน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พิชญกาญจน์, Phichayakarn, Pitchayakan | Thailand |