Cognomen Bykovskikh (Быковских 
, Bykovskikh 
) , in the world, is a rare surname. The cognomen Bykovskikh is habitual in Kazakhstan, where it is a rare surname, Russia, and Kyrgyzstan.
| VARIANT | COUNTRY |
|---|---|
| Быковских | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Bykovskikh | Canada, Russia, Ukraine, Belarus |