Surname ก่อกุล (Kokun 
, ก่อกุล, Kasonkul ) , globally, is a rare family name. The last name ก่อกุล is habitual in Oman, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Bangladesh. Not in comparison with a country's population, the name is most common in Bangladesh, Turkey, and Thailand. More frequently, ก่อกุล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kokun | Japan, Oman, Bangladesh, Turkey, Thailand |
| Koedkul, Kasonkul | Thailand |