Last name Marmarosi (Marmarosi 
) , across the world, is a rare cognomen. The cognomen Marmarosi is characteristic of Hungary, where it is quite a rare surname, France, where it is a very rare surname, and Germany, where it is an extremely rare surname. Very seldom, Marmarosi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Marmarosi | Hungary, Germany, United States, France |