Cognomen อรรถภัทร (Attapat 
, Atphatsorn , อรรถภัทร ) , in all the world, is a very rare last name. The family name อรรถภัทร is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, อรรถภัทร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Attapat, Atphatsorn, อรรถภัทร | Thailand |