Cognomen Marjo-Grèce-Morel (Marjo-Grèce-Morel 
) , all over the world, is an extremely rare family name. Much more frequently, Marjo-Grèce-Morel is the forename as well as the last name. Parts of the name also exists independently as a first name Marjo, a first name Grèce, and a last name Morel.
| VARIANT | COUNTRY |
|---|---|
| Marjo-Grèce-Morel | Democratic Republic of the Congo |