Surname Koumba-Mboumba (Koumba-Mboumba 
) , around the globe, is a rare cognomen. The cognomen Koumba-Mboumba is habitual in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, where it is a rare surname. Parts of the name also exists independently as a last name Koumba, and a last name Mboumba.
| VARIANT | COUNTRY |
|---|---|
| Koumba-Mboumba | Democratic Republic of the Congo |