Last name الكوس (الكوس 
) , throughout the world, is a rare cognomen. The surname الكوس is characteristic of Oman, where it is quite a rare surname, Bahrain, and Iran, where it is a very rare surname. Much less frequently, الكوس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| الكوس | Yemen, Oman, Bahrain, Iran |