Cognomen Nkouka-Ngongo (Nkouka-Ngongo 
) , all over the world, is a rare surname. The surname Nkouka-Ngongo 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 Nkouka, and a last name Ngongo.
| VARIANT | COUNTRY |
|---|---|
| Nkouka-Ngongo | Democratic Republic of the Congo |