Cognomen Loumis (Loumis 
) , across the world, is a very rare last name. The cognomen Loumis is characteristic of Greece, where it is a rare surname, France, where it is an extremely rare surname, and the United States. Very seldom, Loumis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Loumis | United States, France, United Kingdom, Greece |