Family name ไฉนวงศ์ (ไฉนวงศ์ 
) , in the entire world, is an extremely rare last name. The last name ไฉนวงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ไฉนวงศ์ | Thailand |