Surname Черниаков (Cherniakov 
, Черниаков , Chernyakov 
) , globally, is a rare last name. The surname Черниаков is characteristic of Estonia, where it is a rare surname, Belarus, and Russia. In absolute terms, it is the most numerous in Russia, Belarus, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Cherniakov | Spain, Estonia, United States, Russia, Ukraine |
| Черниаков | Russia |
| Chernyakov | Bulgaria, Belarus, United States, Russia, Ukraine |