Cognomen Лусис (Lusis 
, Lusys 
, Lousis 
) , all around the world, is quite a rare family name. The cognomen Лусис is characteristic of Latvia, where it is quite a common surname, Lithuania, where it is a rare surname, and Greece. Not in comparison with a country's population, this name is the most popular in Latvia, the United States, and Greece. Much less frequently, Лусис is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lusis | Latvia, Myanmar, Australia, United States, Indonesia |
| Lusys | Honduras, Venezuela, Lithuania |
| Lousis | Germany, India, United States, Greece |
| Лусис | Russia, Kazakhstan, Ukraine |
|
николай лусис Bulgarian priest, BG (b. 1840) |
|