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