Surname Asamphinnawat (Asamphinnawat 
) , across the world, is a very rare cognomen. The cognomen Asamphinnawat is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Asamphinnawat | Thailand |
Saranyu, Phannee, Noppakhun, and Natthaphimon