The Hungarian Revolution of 1956 (also known as the Hungarian Uprising, 23 October 10 November 1956; Hungarian: 1956-os forradalom), was a countrywide revolution against the government of the Hungarian People's Republic (19491989) and the Hungarian domestic policies imposed by the USSR. Initially anarchic, during the Hungarian Uprising the Hungarian people culminated in protests against domestic policies imposed by the USSR, and the people formed together in protest against the Soviet Union.The Hungarian Revolution began on 23 October 1956 in Budapest when university students appealed to the civil populace to join them at the Hungarian Parliament Building to protest against the USSR's geopolitical domination of Hungary with the Stalinist government of Mtys Rkosi. A delegation of students entered the building of Hungarian Radio to broadcast their sixteen demands for political and economic reforms to the civil society of Hungary, but they were instead detained by security guards. When the student protestors outside the radio building demanded the release of their delegation of students, policemen from the VH (llamvdelmi Hatsg) state protection authority shot and killed several protestors.Consequently, Hungarians organized into revolutionary militias to fight against the VH; local Hungarian Communist leaders and VH policemen were captured and summarily killed or lynched; and anti-communist political prisoners were released and armed. To realize their political, economic, and social demands, the local soviets (councils of workers) assumed control of municipal government from the Hungarian Working People's Party (Magyar Dolgozk Prtja). The new government of Imre Nagy disbanded the VH, declared the Hungarian withdrawal from the Warsaw Pact, and pledged to re-establish free elections. By the end of October the intense fighting had subsided.

Although initially willing to negotiate the withdrawal of the Soviet Army from Hungary, the USSR repressed the Hungarian Revolution on 4 November 1956, and fought the Hungarian revolutionaries until 10 November; repression of the Hungarian Uprising killed 2,500 Hungarians and 700 Soviet Army soldiers, and compelled 200,000 Hungarians to seek political refuge abroad.

Imre Nagy (Hungarian: [ˈimrɛ ˈnɒɟ]; 7 June 1896 – 16 June 1958) was a Hungarian communist politician who served as Chairman of the Council of Ministers (de facto Prime Minister) of the Hungarian People's Republic from 1953 to 1955. In 1956 Nagy became leader of the Hungarian Revolution of 1956 against the Soviet-backed government, for which he was sentenced to death and executed two years later.

Nagy was a committed communist from soon after the Russian Revolution, and through the 1920s he engaged in underground party activity in Hungary. Living in the Soviet Union from 1930, he served the Soviet NKVD secret police as an informer from 1933 to 1941, denouncing over 200 colleagues, who were then purged and arrested and 15 of whom were executed. Nagy returned to Hungary shortly before the end of World War II, and served in various offices as the Hungarian Working People's Party (MDP) took control of Hungary in the late 1940s and the country entered the Soviet sphere of influence. He served as Interior Minister of Hungary from 1945 to 1946 as. Nagy became prime minister in 1953 and attempted to relax some of the harshest aspects of Mátyás Rákosi's Stalinist regime, but was subverted and eventually forced out of the government in 1955 by Rákosi's continuing influence as General Secretary of the MDP. Nagy remained popular with writers, intellectuals, and the common people, who saw him as an icon of reform against the hard-line elements in the Soviet-backed regime.

The outbreak of the Hungarian Revolution on 23 October 1956 saw Nagy elevated to the position of Prime Minister on 24 October as a central demand of the revolutionaries and common people. Nagy's reformist faction gained full control of the government, admitted non-communist politicians, dissolved the ÁVH secret police, promised democratic reforms, and unilaterally withdrew Hungary from the Warsaw Pact on 1 November. The Soviet Union launched a massive military invasion of Hungary on 4 November, forcibly deposing Nagy, who fled to the Embassy of Yugoslavia in Budapest. Nagy was lured out of the Embassy under false promises on 22 November, but was arrested and deported to Romania. On 16 June 1958, Nagy was tried and executed for treason alongside his closest allies, and his body was buried in an unmarked grave.

In June 1989, Nagy and other prominent figures of the 1956 Revolution were rehabilitated and reburied with full honours, an event that played a key role in the collapse of the Hungarian Socialist Workers' Party regime.