Extreme Noise Terror (often abbreviated to ENT) are an British crust punk / grindcore  band originally formed in Ipswich, England  in 1985. The band are widely considered one of the earliest and most influential European grindcore bands,[1][2]  and particularly the forefathers of the crustgrind subgenre.[3]

Notable for one of the earliest uses of dual vocalists in hardcore punk,[3] and for recording a number of sessions for BBC Radio 1 DJ John Peel, Extreme Noise Terror started as a crust punk band and helped characterise the early, archetypal grindcore sound with fiercely political lyrics, grinding guitars, extremely fast tempi and often very short songs.