Nicholas "Nick" Barber (born 31 August 1968), better known by the stage name Doof, is best known as a London-based psychedelic trance musician.

Doof's first official release was in 1993 with NovaMute, the dance label run by Mute Records, a 3-track EP titled "Disposable Hymns to the Infinite". It was through Novamute label-mates Juno Reactor and Ben Watkins that Doof was first introduced to producer Youth (of Killing Joke/ Brilliant), Simon Posford, also known as Hallucinogen, and the Dragonfly Records label.