Surname Milaja (Милая 
, Milaja 
) , worldwide, is a rare last name. The surname Milaja is characteristic of Belarus, where it is quite a rare surname, Russia, where it is a rare surname, and Kazakhstan. Much less frequently, Milaja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Милая | Kazakhstan, Russia, Belarus, United States, Ukraine |
| Milaja | India, Finland, United States, Philippines |