Cognomen บุญธารา (Buntara 
, บุญธารา 
, Boontara ) , across the world, is a rare family name. The surname บุญธารา is characteristic of Indonesia, where it is a rare surname, Japan, where it is a very rare surname, and Thailand. Very seldom, บุญธารา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Buntara | United States, India, Japan, Indonesia |
| บุญธารา | Thailand |
| Boontara | Thailand, United States |