Throughout the world, วินิจชัย (วินิจชัย 
, Winitchai , Vinitchai 
) is a very rare masculine first name. The first name วินิจชัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare boy's name. Also, วินิจชัย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Winitchai, วินิจชัย | Thailand |
| Vinitchai, Vinijchai | Thailand, United States |