Family name Duyer (Duyer 
) , in the world, is a very rare last name. The last name Duyer is habitual in Australia, where it is a very rare surname, Honduras, and the United States, where it is an extremely rare surname. More prevalently, Duyer is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duyer | Honduras, Colombia, Malaysia, Australia, United States |