Family name บุญญากาญจน์ (บุญญากาญจน์, Bunyagarn 
, Boonyagarn 
) , in the world, is a very rare surname. The surname บุญญากาญจน์ is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Bunyagarn | Thailand |
| Boonyakanist, Boonyagarn | United States, Thailand |
Boonyakan, and Boonyakarn