Cognomen Вульфф (Wulff 
, Вульфф 
) , in the entire world, is a common surname. The surname Вульфф is characteristic of Denmark, where it is quite a common surname, Germany, and Norway, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Germany, the United States, and Denmark. Much less frequently, Вульфф is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wulff | Germany, Brazil, Denmark, United States, Sweden |
| Вульфф | Ukraine, Russia |