Surname Козанова (Козанова 
) , around the world, is a rare cognomen. The surname Козанова is characteristic of Bulgaria, where it is a rare surname, Kyrgyzstan, and Kazakhstan, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Russia, Bulgaria, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Козанова | Ukraine, Russia, Kyrgyzstan, Kazakhstan, Bulgaria |