Last name Kozminykh (Kozminykh 
, Козминых , Козьминых 
) , all around the world, is a rare surname. The cognomen Kozminykh is habitual in Cyprus, where it is quite a rare surname, Russia, where it is a rare surname, and Belarus. In absolute terms, it most frequently occurs in Russia, Kazakhstan, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Kozminykh | Cyprus, Russia, Kazakhstan |
| Козминых | Russia |
| Козьминых | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |