Cognomen Chugayev (Чугаев 
, Chugayev 
) , all over the world, is quite a rare last name. The family name Chugayev is habitual in Russia, where it is a rare surname, Kazakhstan, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Чугаев | Kazakhstan, Ukraine, Belarus, Kyrgyzstan, Russia |
| Chugayev | Czechia, United States |