Last name บุญญวิวัฒน์ (บุญญวิวัฒน์, Boonyawiwat 
) , all over the world, is a very rare cognomen. The surname บุญญวิวัฒน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Boonyawiwat | Thailand |