Around the globe, De Gennaro (De Gennaro 
) is a very rare male given name. The first name De Gennaro is habitual in Southern Europe, particularly Italy, where it is a very rare boy's name. Much more prevalently, De Gennaro is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| De Gennaro | Italy, United States, Argentina, France, Venezuela |