Cognomen Гренов (Гренов 
, Grenov 
) , in all the world, is a rare surname. The last name Гренов is characteristic of Denmark, where it is a rare surname, Sweden, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Гренов | Russia, Ukraine |
| Grenov | Sweden, Denmark, United States |