Cognomen พยาไทย (พยาไทย 
) , globally, is an extremely rare family name. The cognomen พยาไทย is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much less frequently, พยาไทย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พยาไทย | Thailand |