William (Bill) Kanengiser is a Grammy Award-winning classical guitarist. He is one of the founding members of the Los Angeles Guitar Quartet (LAGQ).

Kanengiser was born in Orange, New Jersey. He holds a Bachelor of Music and Master of Music from the Thornton School of Music at the University of Southern California, where he also serves as a faculty member.

Kanengiser has won Grammy Awards with the Los Angeles Guitar Quartet, which received the award for best classical crossover album at the 47th Grammy Awards for Guitar Heroes; he has also won for his contribution to Atlanta Symphony Orchestra's performance of Golijov's Ainadamar: Fountain Of Tears, which won the Grammy Award for Best Opera Recording in 2007.