Cognomen Белусь (Belous 
, Belus 
, Белусь 
) , around the globe, is quite a rare last name. The cognomen Белусь is habitual in Moldova, where it is quite a common surname, Lithuania, where it is quite a rare surname, and Belarus. Not in comparison with a country's population, the name is most common in Moldova, the United States, and Russia. Very seldom, Белусь 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 |
| Белусь | Russia, Ukraine, Belarus |