Cognomen Duenner (Duenner 
) , around the globe, is a very rare last name. The cognomen Duenner is characteristic of Germany, where it is a very rare surname, the United States, where it is an extremely rare surname, and Philippines. Much less frequently, Duenner is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duenner | Philippines, Germany, United States, Spain |