Cognomen เสมชัย (เสมชัย 
) , worldwide, is an extremely rare family name. The surname เสมชัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, เสมชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เสมชัย | Thailand |