Family name Suwapanawiwat (Suwapanawiwat 
) , throughout the world, is a very rare cognomen. The surname Suwapanawiwat is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Suwapanawiwat | Thailand |
Sangiam, Phadung, Suwaphat, and Ruethaiwan