Family name ตรงชาติ (Upright 
, ตรงชาติ 
) , around the world, is quite a rare last name. The last name ตรงชาติ is characteristic of Thailand, where it is a rare surname, New Zealand, and the United States. Not in comparison with a country's population, it is commonest in the United States, Thailand, and Canada. Much less frequently, ตรงชาติ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Upright | Canada, New Zealand, United Kingdom, United States, Nigeria |
| ตรงชาติ | Thailand |