Surname Nijaka (Nijaka 
, Нияка 
) , in the entire world, is a very rare last name. The surname Nijaka is characteristic of Eastern Europe, particularly Poland, where it is a very rare surname, Ukraine, and Russia. Likewise, Nijaka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nijaka | India, Poland |
| Нияка | Russia, Ukraine |