All around the world, Calva (Calva 
, Кальва 
) is a rare unisex first name. The forename Calva is habitual in Israel, where it is a rare primarily feminine, but very infrequently boy's name, Italy, where it is a very rare female name, and the United States, where it is a very rare epicene name. Measured by absolute frequency, the name is most common in India, Israel, and the United States. Much more frequently, Calva is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Calva | Philippines, Mexico, Peru, United States, Guatemala |
| Кальва | Ukraine, Russia |