Surname บูลย์ (Bun 
, บูลย์ 
) , all around the world, is a common cognomen. The cognomen บูลย์ is characteristic of Malaysia, where it is quite a common surname, Brunei, and Hong Kong, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Malaysia, Indonesia, and the United States. Much less frequently, บูลย์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bun | Malaysia, Indonesia, Pakistan, United States, Myanmar |
| บูลย์ | Thailand |