Gated reverb or gated ambience is an audio processing technique that combines strong reverb and a noise gate. The effect is often associated with the sound of 1980s British popular music. It was developed in 1979 by producer Steve Lillywhite and engineer Hugh Padgham while working on Peter Gabriel's self-titled third solo album, after Phil Collins played drums without using cymbals at London's Townhouse Studios. The effect is most famously demonstrated in Collins' hit song "In the Air Tonight".

The effect is typically applied to recordings of drums (or live sound reinforcement of drums in a PA system) to make the hits sound powerful and "punchy" while keeping the overall mix clean and transparent sounding. Unlike many reverberation or delay effects, the gated reverb effect does not try to emulate any kind of reverb that occurs in nature. In addition to drums, the effect has occasionally been applied to vocals.