Cognomen Tcherniakov (Черняков 
, Tcherniakov 
) , in the world, is quite a common last name. The cognomen Tcherniakov is characteristic of Eastern Europe, particularly Belarus, where it is quite a rare surname, Russia, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Черняков | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Tcherniakov | Canada |