Family name ธนวุฒิสกุลชัย (ธนวุฒิสกุลชัย 
, Tanavutsakulchai , Thanawutsakulchai ) , all around the world, is a very rare cognomen. The surname ธนวุฒิสกุลชัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thanawutsakulchai, Tanavutsakulchai, ธนวุฒิสกุลชัย | Thailand |