Last name Sage-Yoann-Louvet (Sage-Yoann-Louvet 
) , in all the world, is an extremely rare family name. Much more frequently, Sage-Yoann-Louvet is the forename as well as the last name. Parts of the name also exists independently as a first name Sage, a first name Yoann, and a last name Louvet.
| VARIANT | COUNTRY |
|---|---|
| Sage-Yoann-Louvet | Democratic Republic of the Congo |