Cognomen کاس (Cass 
, کاس) , globally, is a common family name. The surname کاس is characteristic of Australia, where it is quite a rare surname, the United Kingdom, and Ireland. In absolute terms, this name is the most popular in the United States, the United Kingdom, and Australia. Also, کاس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cass | Australia, South Africa, Canada, United Kingdom, United States |