Surname เจ้าตระกูล (เจ้าตระกูล, Jautrakul, Chaotrakool 
) , in the world, is a very rare cognomen. The family name เจ้าตระกูล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chaotrakool | Thailand |