Family name Supyasan (Supyasan 
) , in the world, is a very rare cognomen. The last name Supyasan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Supyasan | Thailand |
Sukraijuk, Somnuek, Thummasorn, Teerakarn, and Tummasorn