Surname กัยกิจ (กัยกิจ 
) , in the entire world, is an extremely rare family name. The last name กัยกิจ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| กัยกิจ | Thailand |
สุรพงษ์, ศุภกิจ, and ผดุงศักดิ์