Around the world, Марусия (Марусия 
, Marusija 
) is a very rare female first name. The given name Марусия is habitual in Kazakhstan, where it is a rare female name, and Russia, where it is a very rare female name. Very seldom, Марусия is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Марусия | Kyrgyzstan, Kazakhstan, Russia |
| Marusija | Croatia, Brazil |