Cognomen Duanner (Duanner 
) , in the entire world, is an extremely rare last name. The surname Duanner is habitual in Latin America and the Caribbean, particularly Venezuela, where it is a very rare surname. More prevalently, Duanner is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duanner | Costa Rica, Spain, United States, Brazil, Venezuela |