Surname บุส (But 
, บุส 
) , around the globe, is a common last name. The last name บุส is characteristic of Hong Kong, where it is quite a common surname, Pakistan, where it is quite a rare surname, and Romania. Not in comparison with a country's population, it most frequently occurs in Pakistan, Saudi Arabia, and Hong Kong. Much less frequently, บุส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| But | Taiwan, India, Pakistan, Hong Kong, Saudi Arabia |
| บุส | Thailand |