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