Family name บุญเทียม (บุญเทียม 
, Boontiam 
, Bunyiam 
) , worldwide, is quite a rare cognomen. The last name บุญเทียม is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname. Likewise, บุญเทียม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| บุญเทียม | Thailand |
| Boontiam | Thailand, Finland |
| Bunyiam | United Kingdom, United States, Thailand |
| Boonyiam | United States, Thailand |