Family name Ludanik (Ludanik 
, Луданик 
) , around the world, is a rare cognomen. The family name Ludanik is characteristic of Eastern Europe, particularly Belarus, where it is a rare surname, Ukraine, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ludanik | Canada, Russia |
| Луданик | Kazakhstan, Russia, Ukraine, Belarus |