Cognomen Caidos (Caidos 
) , in the world, is a very rare family name. The surname Caidos is habitual in Spain, where it is a very rare surname, France, and Argentina, where it is an extremely rare surname. Much less frequently, Caidos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Caidos | Spain, Argentina, Greece, France, Brazil |