In the Belfast Blitz, 200 bombers of the German Luftwaffe attack Belfast, killing some 1,000 people.

The Belfast Blitz consisted of four German air raids on strategic targets in the city of Belfast in Northern Ireland, in April and May 1941 during World War II, causing high casualties. The first was on the night of 7–8 April 1941, a small attack which probably took place only to test Belfast's defences. The next took place on Easter Tuesday, 15 April 1941, when 200 Luftwaffe bombers attacked military and manufacturing targets in the city of Belfast. Some 900 people died as a result of the bombing and 1,500 were injured. High explosive bombs predominated in this raid. Apart from those on London, this was the greatest loss of life in any night raid during the Blitz.

The Luftwaffe was the aerial-warfare branch of the Wehrmacht before and during World War II. Germany's military air arms during World War I, the Luftstreitkräfte of the Imperial Army and the Marine-Fliegerabteilung of the Imperial Navy, had been disbanded in May 1920 in accordance with the terms of the 1919 Treaty of Versailles, which banned Germany from having any air force.

Belfast is the capital city and principal port of Northern Ireland, standing on the banks of the River Lagan and connected to the open sea through Belfast Lough and the North Channel. It is the second-largest city in Ireland, with an estimated population of 348,005 in 2022, and a metropolitan area population of 671,559.