Cognomen Gressis (Gressis 
) , in the world, is a very rare last name. The cognomen Gressis is characteristic of Greece, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United States. Much less frequently, Gressis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gressis | Venezuela, Brazil, United States, Greece |