Cognomen Delvero (Delvero 
) , in all the world, is a very rare last name. The cognomen Delvero is habitual in the United States, where it is an extremely rare surname, and the United Kingdom. More frequently, Delvero is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Delvero | United States, United Kingdom, Democratic Republic of the Congo, South Africa |