Cognomen Cavanilla (Cavanilla 
) , throughout the world, is a very rare family name. The cognomen Cavanilla is habitual in Argentina, where it is a very rare surname, Philippines, and Peru, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Argentina, Philippines, and Brazil. Very seldom, Cavanilla is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cavanilla | Mexico, Brazil, Argentina, Peru, Philippines |