The Siege of Malta in World War II was a military campaign in the Mediterranean theatre. From June 1940 to November 1942, the fight for the control of the strategically important island of the British Crown Colony of Malta pitted the air and naval forces of Fascist Italy and Nazi Germany against the Royal Air Force (RAF) and the Royal Navy.

The opening of a new front in North Africa in June 1940 increased Malta's already considerable value. British air and sea forces based on the island could attack Axis ships transporting supplies and reinforcements from Europe. General Erwin Rommel, de facto field commander of Panzerarmee Afrika in North Africa, recognised its importance quickly. In May 1941, he warned that "Without Malta the Axis will end by losing control of North Africa".

The Axis resolved to bomb or starve Malta into submission, to soften it up for invasion, by attacking its ports, towns, cities, and Allied shipping supplying the island. Malta was one of the most intensively bombed areas during the war. The German Luftwaffe and Italian Regia Aeronautica flew a total of 3,000 bombing raids over two years, dropping 6,700 tons of bombs on the Grand Harbour area alone. Their success would have allowed a combined German–Italian amphibious landing (Operation Herkules) supported by German airborne forces (Fallschirmjäger) but this did not happen.