Family name Mellos (Mellos 
) , across the world, is quite a rare surname. The cognomen Mellos is habitual in Greece, where it is quite a rare surname, Brazil, where it is a rare surname, and Switzerland. Measured by absolute frequency, it is the most numerous in Brazil, Greece, and the United States. Much less frequently, Mellos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mellos | Greece, Australia, Brazil, United States, Switzerland |