All over the world, Oubiala-Koumba (Oubiala-Koumba 
) is an extremely rare unknown gender given name. Predominantly, Oubiala-Koumba is the last name as well as the forename. Parts of the name also exists independently as a last name Koumba.
| VARIANT | COUNTRY |
|---|---|
| Oubiala-Koumba | Democratic Republic of the Congo |