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