Family name Каід (Caid 
, Qayed 
, Каід 
) , in the world, is quite a rare last name. The cognomen Каід is habitual in Western Asia, particularly Qatar, where it is quite a rare surname, United Arab Emirates, and Israel. Not in comparison with a country's population, it is commonest in Algeria, Saudi Arabia, and Morocco. Very seldom, Каід is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Caid | Morocco, France, United States, Israel, Algeria |
| Qayed | Egypt, Qatar, United States, Saudi Arabia, United Arab Emirates |
| Каід | Ukraine |