Cognomen ดูล (Dul 
, Dun , ดูล 
) , in the world, is a common surname. The surname ดูล is characteristic of Hungary, where it is quite a common surname, Netherlands, where it is quite a rare surname, and Bahamas. Not in comparison with a country's population, it most frequently occurs in China, Indonesia, and Poland. Also, ดูล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dun, Dul | Poland, India, Indonesia, Malaysia, China |
| ดูล | Thailand |