Cognomen Capalnas (Capalnas 
) , worldwide, is a rare surname. The surname Capalnas is habitual in Romania, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Capalnas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Capalnas | Spain, United States, Romania |