Around the world, พิธิชัย (พิธิชัย 
) is a very rare male forename. The given name พิธิชัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare boy's name. Much less frequently, พิธิชัย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| พิธิชัย | Thailand |