Surname ต่อบุญ (Merit 
, Torboon 
, ต่อบุญ) , around the world, is quite a rare family name. The cognomen ต่อบุญ is habitual in Nigeria, where it is quite a rare surname, Ghana, where it is a rare surname, and Mexico. Not in comparison with a country's population, it most frequently occurs in Nigeria, Mexico, and France. Also, ต่อบุญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Merit | Zimbabwe, Egypt, Mexico, France, Nigeria |
| Torboon | Thailand |