Cognomen Berta Barbara (Berta Barbara 
) , across the world, is an extremely rare surname. The last name Berta Barbara is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More prevalently, Berta Barbara is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Berta Barbara | Spain, Ecuador, Chile, Germany |