Family name Алесся (Alessia 
, Alessya 
, Алесся 
) , all around the world, is quite a rare surname. The cognomen Алесся is characteristic of Luxembourg, where it is quite a rare surname, Italy, and Albania. In absolute terms, it is the most numerous in Italy, Romania, and Mexico. Much more prevalently, Алесся is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alessia | Italy, Switzerland, United States, Brazil, Democratic Republic of the Congo |
| Alessya | Romania, Italy, United States, Canada, Brazil |
| Алесся | Russia, Ukraine, Belarus |