William Nelson is an English singer, guitarist, songwriter, producer, painter, video artist, writer and experimental musician. He rose to prominence as the chief songwriter, vocalist and guitarist of the rock group Be-Bop Deluxe, which he formed in 1972. Nelson has been described as "one of the most underrated guitarists of the seventies art rock movement". In 2015, he was recognised with the Visionary award at the Progressive Music Awards.

Be-Bop Deluxe were an English rock band who achieved critical acclaim and moderate commercial success during the mid to late 1970s.