Surname Chudnaya (Чудная 
, Chudnaya 
) , in all the world, is a rare family name. The family name Chudnaya is habitual in Eastern Europe, particularly Russia, where it is a rare surname, Ukraine, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Чудная | Belarus, Russia, Kazakhstan, Ukraine |
| Chudnaya | Russia, Finland, United States, Ukraine |