Family name สัจวงศ์วาณิช (สัจวงศ์วาณิช 
) , throughout the world, is an extremely rare last name. The last name สัจวงศ์วาณิช is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| สัจวงศ์วาณิช | Thailand |