Last name Marganis (Marganis 
) , around the world, is a very rare cognomen. The surname Marganis is habitual in Greece, where it is a rare surname, Australia, where it is a very rare surname, and Georgia. Much less frequently, Marganis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Marganis | Australia, Philippines, Georgia, Greece, United States |