In all the world, Масталиев (Масталиев 
, Mastaliev , Mastaliyev 
) is an extremely rare unknown gender forename. Much more prevalently, Масталиев is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Масталиев | Kazakhstan, Russia |
| Mastaliev | Russia |
| Mastaliyev | Azerbaijan |