Surname Moskovaja (Московая 
, Moskovaja 
) , in all the world, is a rare family name. The family name Moskovaja is characteristic of Azerbaijan, where it is quite a rare surname, Estonia, where it is a rare surname, and Russia. In absolute terms, this name is the most popular in Russia, Azerbaijan, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Московая | Azerbaijan, Kazakhstan, Russia, Ukraine |
| Moskovaja | Estonia |