Cognomen Phetpichai (Phetpichai 
) , throughout the world, is a very rare last name. The family name Phetpichai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Phetpichai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phetpichai | United States, Thailand |