Cognomen วงศ์กลาง (วงศ์กลาง 
) , in the world, is a rare family name. The family name วงศ์กลาง is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| วงศ์กลาง | Thailand |
Vongnaklang, Wongkklang, and Wongnaklang