Cognomen Lyudvyk (Людвик 
, Лиудвик , Lyudvyk 
) , in the world, is a rare family name. The family name Lyudvyk is characteristic of Armenia, where it is quite a common surname, Ukraine, where it is a rare surname, and Belarus. Measured by absolute frequency, it is commonest in Armenia, Ukraine, and Russia. Likewise, Lyudvyk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Людвик | Russia, Kazakhstan, Armenia, Lithuania, Ukraine |
| Лиудвик | Russia |
| Lyudvyk | United States, Ukraine, Hungary |