Family name พันธชัย (พันธชัย 
, Pantachai 
) , in the entire world, is a rare surname. The surname พันธชัย is habitual in Thailand, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname. Very seldom, พันธชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พันธชัย | Thailand |
| Pantachai | United Kingdom, Thailand |