Cognomen Cavañas (Cavañas 
) , all around the world, is a very rare family name. The family name Cavañas is habitual in Argentina, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Cavañas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cavañas | Spain, Argentina, Philippines |