Jonathan Avram “Yoni” Wolf (born April 30, 1979) is an American alternative hip hop and indie rock musician and co-founder of the record label Anticon.

From 1997 until 2004, Wolf released music under the stage name WHY?. In 2004 he transferred that name onto his newly founded band. Thereafter he has been credited for his solo work as Yoni Wolf.

Prior to the founding of the band Why? in 2004, Wolf had also been a member of numerous other groups, including Greenthink, CLOUDDEAD, Reaching Quiet and Hymie’s Basement.