Surname จงวัฒนกุล (จงวัฒนกุล 
, Jongwatanakul , Chongwatthanakun ) , all over the world, is a very rare family name. The surname จงวัฒนกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| จงวัฒนกุล, Jongwatanakul, Chongwatthanakun, Chongwatanakul | Thailand |