This Heat were an English experimental rock band, formed in early 1976 in Camberwell, London by multi-instrumentalists Charles Bullen (guitar, clarinet, viola, vocals, tapes), Charles Hayward (drums, keyboards, vocals, tapes) and Gareth Williams (keyboard, guitar, bass, vocals, tapes).

This Heat were active in the ascendancy of British progressive rock and punk rock, but stood apart from those scenes due to a radically inventive approach that touched on numerous different styles and genres, but was always confrontational and politically charged. Their commercial success was limited, but This Heat are widely considered a missing link between progressive rock (especially krautrock) and such later experimental genres as post-punk, industrial music, post-rock and noise rock. This Heat's influences included Can, Lee "Scratch" Perry and Throbbing Gristle.