William Allen Henderson CM (born November 6, 1944) is a Canadian singer, songwriter, and music producer.

Henderson is best known for his work as lead singer and guitarist with the group Chilliwack in the 1970s and 1980s,[1][2] As a young man, Henderson performed as a guitarist in the Panorama Trio at the Vancouver Hilton Hotel's Panorama Roof restaurant.

Henderson was a founding inductee to the BC Entertainment Hall of Fame in 1994.

[10][11] In 2016, Henderson continues to tour Canada as a solo musician[8] and to perform with Chilliwack.

[12] Henderson's daughter Camille Henderson is a singer; she was a member in the early 1990s of the pop trio West End Girls,[13] and has appeared as a guest vocalist on albums by Sarah McLachlan and Delerium.