Family name Magnat-Legrave (Magnat-Legrave 
) , in all the world, is an extremely rare cognomen. The cognomen Magnat-Legrave is habitual in Western Europe, particularly France, where it is an extremely rare surname. Parts of the name also exists independently as a last name Magnat, and a last name Legrave.
| VARIANT | COUNTRY |
|---|---|
| Magnat-Legrave | France |