Cognomen Kolomnikov (Kolomnikov 
, Коломников 
) , across the world, is a rare surname. The family name Kolomnikov is characteristic of Kazakhstan, where it is a rare surname, Russia, and Kyrgyzstan.
| VARIANT | COUNTRY |
|---|---|
| Kolomnikov | Germany, Russia |
| Коломников | Kyrgyzstan, Kazakhstan, Russia, Ukraine |