Surname Niangui-Moungongo (Niangui-Moungongo 
) , throughout the world, is a rare cognomen. The cognomen Niangui-Moungongo 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 Niangui, and a last name Moungongo.
| VARIANT | COUNTRY |
|---|---|
| Niangui-Moungongo | Democratic Republic of the Congo |