Surname Rumiia (Румия 
, Румииа , Rumiia 
) , across the world, is a rare cognomen. The surname Rumiia is habitual in Kyrgyzstan, where it is quite a rare surname, Uzbekistan, where it is a rare surname, and Russia, where it is a very rare surname. Much more prevalently, Rumiia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Румия | Kazakhstan, Kyrgyzstan, Belarus, Russia, Uzbekistan |
| Румииа | Russia |
| Rumiia | Georgia, Russia |