Cognomen Мажей (Мажей 
) , all around the world, is a very rare family name. The cognomen Мажей is characteristic of Belarus, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Belarus, Kazakhstan, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Мажей | Kazakhstan, Russia, Ukraine, Belarus |