Cognomen Yanichek (Yanichek 
, Яничек 
) , in the world, is a very rare last name. The family name Yanichek is characteristic of Eastern Europe, particularly Belarus, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Yanichek | Russia |
| Яничек | Russia, Ukraine, Belarus |