Family name เก่งสกุล (เก่งสกุล, Aiwsakul 
, Kengskool 
) , globally, is a rare cognomen. The family name เก่งสกุล is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Aiwsakul, Kengsakool | Thailand |
| Kengskool | Thailand, United States |
Keangsakul, and Kengsakul