Cognomen Белус (Belous 
, Belus 
, Белус 
) , worldwide, is quite a rare family name. The family name Белус is characteristic of Moldova, where it is quite a common surname, Lithuania, where it is quite a rare surname, and Estonia. In absolute terms, it is the most numerous in Moldova, the United States, and Russia. Much less frequently, Белус is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Belous | Russia, Belarus, Moldova, United States, France |
| Belus | Germany, Russia, United States, France, Brazil |
| Белус | Kazakhstan, Russia, Ukraine |