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Family name Cás (Cas
, Cás
) , throughout the world, is a common surname. The last name Cás is habitual in Slovenia, where it is quite a common surname, Belize, and Guatemala, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Philippines, Guatemala, and Brazil. Also, Cás is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cas | Philippines, Brazil, Myanmar, Guatemala, Indonesia |
| Cás | Brazil |