Family name Kumaniaev (Kumaniaev 
, Куманяев 
) , in all the world, is a rare surname. The cognomen Kumaniaev is habitual in Russia, where it is a rare surname, Belarus, and Kyrgyzstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kumaniaev | Thailand |
| Куманяев | Kyrgyzstan, Russia, Belarus |