Surname Gryzunova (Грызунова 
, Gryzunova ) , globally, is quite a rare family name. The family name Gryzunova is characteristic of Russia, where it is a rare surname, Kazakhstan, and Belarus, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Грызунова | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Gryzunova | Russia |