Cognomen Abner Gerardo (Abner Gerardo 
) , in the entire world, is an extremely rare family name. The last name Abner Gerardo is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More frequently, Abner Gerardo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Abner Gerardo | Chile, Peru, Costa Rica |