Last name Guelbault-Biabouna (Guelbault-Biabouna 
) , in the world, is a rare family name. The surname Guelbault-Biabouna 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 Guelbault, and a last name Biabouna.
| VARIANT | COUNTRY |
|---|---|
| Guelbault-Biabouna | Democratic Republic of the Congo |