Surname บุญชัน (Bunchan 
, บุญชัน ) , throughout the world, is a rare family name. The cognomen บุญชัน is characteristic of Thailand, where it is a rare surname, Cambodia, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Thailand, Cambodia, and the United States. Likewise, บุญชัน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bunchan | Australia, Thailand, United States, India, Cambodia |
| บุญชัน | Thailand |