Surname Oko-Issongo (Oko-Issongo 
) , globally, is a rare last name. The last name Oko-Issongo 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 Oko, and a last name Issongo.
| VARIANT | COUNTRY |
|---|---|
| Oko-Issongo | Democratic Republic of the Congo |