Family name لايس (Lais 
, Les 
, لايس 
) , in the entire world, is a common cognomen. The family name لايس is characteristic of Guadeloupe, where it is quite a common surname, Slovenia, and Botswana, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in Indonesia, Germany, and India. More prevalently, لايس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lais | Australia, Brazil, Poland, United States, United Kingdom |
| Les | Australia, Canada, Brazil, Poland, United States |
| لايس | Iraq |