Cognomen กาญจนวัฒนกุล (กาญจนวัฒนกุล 
, Kanjanawatanakul , Kanchanawattanakul ) , in the world, is a very rare surname. The cognomen กาญจนวัฒนกุล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kanchanawattanakul, Kanjanawattanakool, กาญจนวัฒนกุล, Kanjanawatanakul | Thailand |
Kanchanawatthanakun, Kanjanawattanakul, and Kanjanawattanakun