Last name พุทธนา (Buddha 
, พุทธนา ) , around the world, is quite a common surname. The cognomen พุทธนา is characteristic of Nepal, where it is quite a rare surname, India, where it is a rare surname, and Malaysia. Not in comparison with a country's population, this name is the most popular in India, Nepal, and Thailand. More prevalently, พุทธนา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Buddha | Malaysia, Taiwan, Nepal, India, Thailand |
| พุทธนา | Thailand |