Cognomen Voulf (Вульф 
, Вулф , Voulf 
) , around the globe, is a rare surname. The surname Voulf is habitual in Kazakhstan, where it is a rare surname, Russia, and Kyrgyzstan. Measured by absolute frequency, it is the most numerous in Russia, Kazakhstan, and Ukraine. Very seldom, Voulf is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Вульф | Ukraine, Kazakhstan, Belarus, Russia, Kyrgyzstan |
| Вулф | Russia, Ukraine |
| Voulf | Germany, Canada |