Family name Mustayev (Мустаев 
, Mustayev 
) , across the world, is quite a rare last name. The surname Mustayev is habitual in Russia, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Kyrgyzstan.
| VARIANT | COUNTRY |
|---|---|
| Мустаев | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Mustayev | New Zealand |