Surname Gasainiev (Gasainiev 
, Гасайниев 
) , throughout the world, is a rare last name. The surname Gasainiev is habitual in Russia, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gasainiev | Russia |
| Гасайниев | Ukraine, Kazakhstan, Russia |