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