This is a list of incidents that happened in the area that is now the United Kingdom and are commonly called "massacres".
| Date | Name | Location | Deaths | Injuries | Notes |
|---|---|---|---|---|---|
| 16 March 1190 |
The Massacre of the Jews at York, 1190 [1] |
York, England | 150 |
. . . Crusaders preparing to follow their king against the Saracens, burgesses envious of Jewish wealth, barons indebted to the Jews, the fanatical clergy, all conspired to exterminate the Jews. ...The alarmed Jews, with their leader Joseph [Josce of York], sought shelter in the royal castle. ...Richard Malebys, a noble deeply in debt to the Jews, commanded the siege. The hapless Jews were short of rations; surrender spelled baptism or death by torture. In obedience to the exhortations of their religious leader, Yom Tob of Joigny, they chose to lay hands on themselves. . . . When, at daybreak, the [burning] citadel was captured, those who were still alive were put to death. . . . The mob then returned to the cathedral where the records of debts due to Jews were in safe-keeping. They compelled the guardians to turn these over to them to be burned then and there in the sanctuary. This done, the fury of the mob was spent, and the city was restored to its usual order and quiet. Similarly the mobs raged elsewhere. ... [1] |
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| 10 May 1768 | Massacre of St George's Fields | London, England | 6-7 | took place during a riot | |
| 16 August 1819 | Peterloo Massacre | Manchester, England | 15 | 400-700 | took place during a large outdoor protest |
| 1 April 1922 | Arnon Street massacre | Belfast, Northern Ireland | 6 | 1 | part of the Irish War of Independence |
| 9–11 August 1971 | Ballymurphy Massacre | Belfast, Northern Ireland | 11 | unknown | Committed by the Parachute Regiment, British Army |
| 30 January 1972 | Bloody Sunday (1972) | Derry, Northern Ireland | 15 | 17 | Committed by the Parachute Regiment, British Army. Part of "The Troubles"; also called "the Bogside Massacre" |
| 31 July 1975 | Miami Showband massacre | Buskhill, County Down, Northern Ireland | 5 | 2 | Committed by the UVF (including 5 off-duty British soldiers). Allegations of collusion persist. Part of "The Troubles" |
| 5 January 1976 | Kingsmill massacre | Kingsmill, County Armagh, Northern Ireland | 10 | 1 | A 2011 report by the Historical Inquiries Team found that the Provisional IRA was responsible for the killings. Part of "The Troubles" |
| 19 August 1987 | Hungerford massacre | Hungerford, England | 16 | 15 | spree shooting |
| 8 November 1987 | Remembrance Day bombing | Enniskillen, Northern Ireland | 12 | 63 | Committed by the PIRA. Part of "The Troubles"; also called "the Poppy Day Massacre" |
| 16 March 1988 | Milltown Massacre | Belfast, Northern Ireland | 3 | 60+ | Committed by UDA member Michael Stone. Part of "The Troubles" |
| 30 October 1993 | Greysteel massacre | Greysteel, Northern Ireland | 8 | 13 | Committed by the UDA (under the cover name UFF). Part of "The Troubles" |
| 18 June 1994 | Loughinisland massacre | Loughinisland, Northern Ireland | 6 | 5 | Committed by the UVF. Part of "The Troubles" |
| 13 March 1996 | Dunblane massacre | Dunblane, Scotland | 18 | 15 | school shooting |
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