Cognomen กิ่งวงศา (กิ่งวงศา, Kingwongsa 
) , across the world, is a rare last name. The surname กิ่งวงศา is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kingwongsa | United States, Thailand |