Family name Grenik (Grenik 
, Греник 
) , in the world, is a rare surname. The cognomen Grenik is characteristic of Armenia, where it is quite a rare surname, Ukraine, where it is a rare surname, and Russia, where it is a very rare surname. Also, Grenik is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Grenik | Russia, India, Poland, Canada, Brazil |
| Греник | Armenia, Russia, Ukraine |