The Hungerford massacre was a spree shooting in Hungerford, England, United Kingdom, on 19 August 1987, when 27-year-old Michael Ryan shot dead sixteen people, including an unarmed police officer and his own mother, before shooting himself. The shootings, committed using a handgun and two semi-automatic rifles, occurred at several locations, including a school he had once attended. Fifteen other people were also shot but survived. No firm motive for the killings has ever been established.

A report on the massacre was commissioned by Home Secretary Douglas Hurd. The Firearms (Amendment) Act 1988 was passed in the wake of the incident, which bans the ownership of semi-automatic centre-fire rifles and restricts the use of shotguns with a capacity of more than three cartridges. The shootings remain one of the deadliest firearms incidents in British history.