Cognomen คลัส (Khlat 
, คลัส) , in the world, is a rare family name. The last name คลัส is habitual in Lebanon, where it is quite a rare surname, Malta, and United Arab Emirates. In absolute terms, it is the most numerous in Lebanon, United Arab Emirates, and France. Much less frequently, คลัส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khlat | United Arab Emirates, France, Egypt, Libya, Lebanon |