Cognomen Grebenskova (Grebenskova 
, Гребенскова 
) , across the world, is a very rare surname. The cognomen Grebenskova is habitual in Eastern Europe, particularly Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Grebenskova | Russia |
| Гребенскова | Russia, Ukraine |