Surname Koumbi (Koumbi 
) , across the world, is quite a rare last name. The last name Koumbi is habitual in Gabon, where it is quite a rare surname, the Democratic Republic of the Congo, and France, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Koumbi | France, Gabon, Democratic Republic of the Congo, United States |