Family name นายช่าง (Mechanic 
, Saitor 
, นายช่าง) , all around the world, is quite a rare cognomen. The last name นายช่าง is characteristic of Qatar, where it is a rare surname, Saudi Arabia, and Estonia. Not in comparison with a country's population, it most frequently occurs in the United States, Indonesia, and Saudi Arabia. Much less frequently, นายช่าง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mechanic | Saudi Arabia, Bangladesh, Myanmar, United States, Indonesia |
| Saitor | Estonia, India |