Cognomen Sirasitthiwong (Sirasitthiwong 
) , throughout the world, is a very rare family name. The surname Sirasitthiwong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sirasitthiwong | Thailand |
Kawinwat, and Thanyaphat