Family name Mouandza-Massengo (Mouandza-Massengo 
) , around the world, is a rare cognomen. The surname Mouandza-Massengo 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 Mouandza, and a last name Massengo.
| VARIANT | COUNTRY |
|---|---|
| Mouandza-Massengo | Democratic Republic of the Congo |