Family name บุญเซียง (Boonsieng 
, บุญเซียง , Bunsiang 
) , around the globe, is a very rare last name. The surname บุญเซียง is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname, and Indonesia. Very seldom, บุญเซียง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Boonsieng | United States, Thailand |
| บุญเซียง | Thailand |
| Bunsiang | Indonesia |