Cognomen Розенов (Rosenow 
, Розенов 
) , globally, is quite a rare family name. The cognomen Розенов is characteristic of Germany, where it is quite a rare surname, Switzerland, and the United States, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and Australia. Very seldom, Розенов is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosenow | Germany, Canada, United States, Switzerland, Australia |
| Розенов | Ukraine, Russia, Kazakhstan |