Surname Petryakova (Петрякова 
, Petryakova 
) , globally, is quite a rare cognomen. The last name Petryakova is habitual in Russia, where it is quite a rare surname, Kazakhstan, and Belarus, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Russia, Kazakhstan, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Петрякова | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Petryakova | Kazakhstan, Russia, Spain, Estonia, Finland |