Last name บุญสน (บุญสน 
, Bunson 
) , worldwide, is a rare surname. The last name บุญสน is characteristic of Thailand, where it is a rare surname, New Zealand, where it is a very rare surname, and the United States. Not in comparison with a country's population, it most frequently occurs in Thailand, the United States, and India. Likewise, บุญสน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| บุญสน | Thailand |
| Bunson | Philippines, Thailand, United States, India, Nigeria |