In all the world, Makoumbou-Bilongo (Makoumbou-Bilongo 
) is an extremely rare unknown gender forename. Much more frequently, Makoumbou-Bilongo is the last name as well as the forename. Parts of the name also exists independently as a last name Makoumbou, and a last name Bilongo.
| VARIANT | COUNTRY |
|---|---|
| Makoumbou-Bilongo | Democratic Republic of the Congo |