Cognomen Mbiakolo-Ngassaï (Mbiakolo-Ngassaï 
) , around the world, is a rare last name. The family name Mbiakolo-Ngassaï 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 Mbiakolo, and a last name Ngassaï.
| VARIANT | COUNTRY |
|---|---|
| Mbiakolo-Ngassaï | Democratic Republic of the Congo |