Cognomen Isungu (Isungu 
) , globally, is a rare family name. The last name Isungu is habitual in the Democratic Republic of the Congo, where it is a rare surname, France, where it is a very rare surname, and South Africa, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Isungu | Democratic Republic of the Congo, United Kingdom, South Africa, France |