Cognomen Chumanov (Чуманов 
, Chumanov 
) , across the world, is a rare family name. The cognomen Chumanov is characteristic of Kazakhstan, where it is a rare surname, Russia, and Kyrgyzstan. Measured by absolute frequency, it is the most numerous in Russia, Kazakhstan, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Чуманов | Kyrgyzstan, Russia, Belarus, Kazakhstan, Ukraine |
| Chumanov | Russia, Kazakhstan, United States, Israel, Poland |