Cognomen ตั้งวัฒนกุล (ตั้งวัฒนกุล, Tangwatanakul 
) , across the world, is an extremely rare surname. The surname ตั้งวัฒนกุล is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tangwatanakul | Thailand |