Cognomen Diogeni (Diogeni 
) , across the world, is a very rare last name. The cognomen Diogeni is habitual in Georgia, where it is a rare surname, Greece, and Venezuela, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Georgia, Greece, and Mexico. Likewise, Diogeni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diogeni | Mexico, Brazil, Venezuela, Greece, Georgia |