Surname Vazhnova (Vazhnova 
, Важнова 
) , all around the world, is quite a rare cognomen. The surname Vazhnova is characteristic of Eastern Europe, particularly Russia, where it is a rare surname, Belarus, and Ukraine, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vazhnova | Russia |
| Важнова | Kazakhstan, Russia, Ukraine, Belarus |