Surname Graván (Graván 
) , across the world, is an extremely rare family name. The last name Graván is characteristic of Southern Europe, particularly Spain, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Graván | Spain |
| maría lamuedra graván researcher, ORCID id # 0000-0002-3688-3488 |
|