Cognomen Ollessini-Essanga (Ollessini-Essanga 
) , in all the world, is a rare family name. The surname Ollessini-Essanga 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 Essanga.
| VARIANT | COUNTRY |
|---|---|
| Ollessini-Essanga | Democratic Republic of the Congo |