Family name ไวยวงศ์ (Waiwong 
, ไวยวงศ์ , Viyavong 
) , in the world, is a rare last name. The cognomen ไวยวงศ์ is habitual in Thailand, where it is a rare surname, Canada, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| ไวยวงศ์, Waiwong | Thailand |
| Viyavong | Canada, Thailand, United States |