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