Surname กิจนุกูล (กิจนุกูล 
, Kitnukul 
, Kitnukun ) , around the world, is a rare last name. The family name กิจนุกูล is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, กิจนุกูล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kitnukool, กิจนุกูล, Kitnukun | Thailand |
| Kitnukul | Thailand, United States |