Surname ตวงชัย (ตวงชัย 
) , in all the world, is an extremely rare last name. The surname ตวงชัย is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, ตวงชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ตวงชัย | Thailand |
สิเนหะวัฒนะ, and ณัฏฐโสภณ