Cognomen วรรณวัฒนกุล (วรรณวัฒนกุล 
, Wannavatakul , Wanatanakul ) , in all the world, is a very rare surname. The cognomen วรรณวัฒนกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wanwatanakul, Wanatanakul, Wannavatakul, วรรณวัฒนกุล | Thailand |
Wanawatanakul, Wanawatanakun, Wanwattanakul, Wanwattanakun, and Wanwatthanakul