Last name Ponchai (พลชัย 
, ปณชัย , Ponchai 
) , globally, is quite a rare family name. The surname Ponchai is habitual in Thailand, where it is quite a rare surname, Pakistan, where it is an extremely rare surname, and China. Also, Ponchai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ปณชัย, พลชัย | Thailand |
| Ponchai | China, Thailand, United States, Pakistan, Myanmar |