Cognomen Kalachyova (Kalachyova 
, Калачёва 
) , worldwide, is a rare last name. The surname Kalachyova is habitual in Kazakhstan, where it is quite a rare surname, Belarus, and Kyrgyzstan, where it is a rare surname. In absolute terms, it most frequently occurs in Kazakhstan, Belarus, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Kalachyova | Russia |
| Калачёва | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |