Surname Загаинова (Загаинова 
, Zagaynova 
, Zagainova 
) , in all the world, is a rare family name. The family name Загаинова is habitual in Russia, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Georgia. Measured by absolute frequency, it is commonest in Russia, Kazakhstan, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Загаинова | Russia, Kazakhstan, Ukraine |
| Zagaynova | United Kingdom, Russia, United States, Ukraine |
| Zagainova | Kazakhstan, Georgia, United States, Germany, Russia |