Cognomen Nkaubault-Banga (Nkaubault-Banga 
) , around the globe, is a rare last name. The surname Nkaubault-Banga 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 Banga.
| VARIANT | COUNTRY |
|---|---|
| Nkaubault-Banga | Democratic Republic of the Congo |