Cognomen Lyadnova (Lyadnova 
, Ляднова 
) , globally, is a rare family name. The cognomen Lyadnova is characteristic of Eastern Europe, particularly Ukraine, where it is a rare surname, Belarus, where it is a very rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Lyadnova | Russia, United States |
| Ляднова | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |