Cognomen Ibara-Nzanga (Ibara-Nzanga 
) , across the world, is a rare last name. The cognomen Ibara-Nzanga 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 Ibara, and a last name Nzanga.
| VARIANT | COUNTRY |
|---|---|
| Ibara-Nzanga | Democratic Republic of the Congo |