Surname Boumani-Ngassia (Boumani-Ngassia 
) , in all the world, is a rare last name. The last name Boumani-Ngassia is characteristic of 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 Ngassia.
| VARIANT | COUNTRY |
|---|---|
| Boumani-Ngassia | Democratic Republic of the Congo |