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 | Philippines, United States, Spain, France |