Surname آلياس (Allais 
, Allays 
, آلياس) , worldwide, is quite a rare cognomen. The last name آلياس is characteristic of France, where it is quite a rare surname, Estonia, and Italy, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in France, Italy, and Argentina. Much less frequently, آلياس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Allais | Italy, France, United States, Belgium, Argentina |
| Allays | Italy, France, Pakistan, Venezuela, Brazil |