Cognomen Mouandza-Nkoussou (Mouandza-Nkoussou 
) , around the globe, is a rare last name. The last name Mouandza-Nkoussou 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 Mouandza, and a last name Nkoussou.
| VARIANT | COUNTRY |
|---|---|
| Mouandza-Nkoussou | Democratic Republic of the Congo |