Cognomen Николусь (Nikolus 
, Николусь 
) , in the world, is a very rare last name. The last name Николусь is characteristic of Russia, where it is a very rare surname, Ukraine, where it is an extremely rare surname, and India. More prevalently, Николусь is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nikolus | Russia, United Kingdom, United States, Tanzania, India |
| Николусь | Russia, Ukraine |