Cognomen Caiss (Caiss 
) , in the entire world, is a very rare family name. The family name Caiss is habitual in Spain, where it is a rare surname, and Philippines, where it is an extremely rare surname. Also, Caiss is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Caiss | France, Spain, United States, Philippines |