Family name ก่อตระกูลกิจ (ก่อตระกูลกิจ, Kortrakulkij 
) , in the entire world, is a very rare cognomen. The surname ก่อตระกูลกิจ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kortrakulkij | Thailand |