Surname บุญตันสา (Boonsa 
, บุญตันสา , Boontansa ) , around the world, is a rare cognomen. The cognomen บุญตันสา is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, บุญตันสา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Boonsa | Saudi Arabia, Malaysia, Thailand |
| บุญตันสา, Boontansa | Thailand |