Family name Dubrun (Dubrun 
) , around the globe, is a very rare surname. The surname Dubrun is characteristic of France, where it is a very rare surname, Brazil, where it is an extremely rare surname, and the United States. More prevalently, Dubrun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dubrun | Brazil, France, Democratic Republic of the Congo, United States |