Cognomen Okamba-Ngala (Okamba-Ngala 
) , in the world, is a rare surname. The last name Okamba-Ngala 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 Okamba, and a last name Ngala.
| VARIANT | COUNTRY |
|---|---|
| Okamba-Ngala | Democratic Republic of the Congo |