In all the world, Martell-Gravie (Martell-Gravie 
) is an extremely rare unknown gender first name. Much more frequently, Martell-Gravie is the last name as well as the forename. Parts of the name also exists independently as a last name Martell, and a last name Gravie.
| VARIANT | COUNTRY |
|---|---|
| Martell-Gravie | United States |