Last name Carballo-Graver (Carballo-Graver 
) , in the entire world, is an extremely rare surname. The last name Carballo-Graver is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Carballo, and a last name Graver.
| VARIANT | COUNTRY |
|---|---|
| Carballo-Graver | United States |