Cognomen Oppia (Oppia 
) , throughout the world, is a very rare last name. The cognomen Oppia is characteristic of Southern Europe, particularly Italy, where it is a rare surname. Very seldom, Oppia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oppia | Italy, United States |
| vestia oppia supporter of the Romans in Capua during the Second Punic War, IT |
|