Cognomen Kononykhina (Kononykhina 
, Кононыхина 
) , in the entire world, is quite a rare surname. The last name Kononykhina is habitual in Russia, where it is a rare surname, Kazakhstan, and Czechia.
| VARIANT | COUNTRY |
|---|---|
| Kononykhina | Russia, Czechia, United States, Ukraine |
| Кононыхина | Russia, Ukraine, Kazakhstan, Kyrgyzstan |