Globally, Berta Rosa (Berta Rosa 
) is quite a rare female forename. The first name Berta Rosa is characteristic of Latin America and the Caribbean, particularly Chile, where it is quite a common girly name, Cuba, where it is a rare girly name, and Costa Rica. Measured by absolute frequency, this name is the most popular in Latin America and the Caribbean, particularly Chile, Cuba, and Peru. Very seldom, Berta Rosa is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Berta Rosa | Peru, Spain, Chile, Costa Rica, Cuba |