Family name สว่างวิวัฒน์ (สว่างวิวัฒน์, Savangvivat, Sawangwiwat 
) , all around the world, is a very rare last name. The cognomen สว่างวิวัฒน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sawangwiwat | Thailand |