Last name Carcaba (Carcaba 
) , all over the world, is a rare surname. The cognomen Carcaba is habitual in Argentina, where it is a very rare surname, Portugal, and Spain. Not in comparison with a country's population, it is the most numerous in the United States, Argentina, and Spain. Also, Carcaba is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Carcaba | Portugal, France, Argentina, Spain, United States |