Christian Democracy (Italian: Democrazia Cristiana [demokratˈtsiːa kriˈstjaːna], DC) was a Christian democratic political party in Italy. The DC was founded on 15 December 1943 in the Italian Social Republic (Nazi-occupied Italy) as the nominal successor of the Italian People's Party, which had the same symbol, a crusader shield (scudo crociato). As a Catholic-inspired, centrist, catch-all party comprising both centre-right and centre-left political factions, the DC played a dominant role in the politics of Italy for fifty years, and had been part of the government from soon after its inception until its final demise on 16 January 1994 amid the Tangentopoli scandals. Christian Democrats led the Italian government continuously from 1946 until 1981. The party was nicknamed the "White Whale" (Italian: Balena bianca) due to its huge organisation and official colour. During its time in government, the Italian Communist Party was the largest opposition party.

From 1946 until 1994, the DC was the largest party in the Italian Parliament, governing in successive coalitions, including the Pentapartito system. It originally supported liberal-conservative governments, along with the moderate Italian Democratic Socialist Party, the Italian Liberal Party, and the Italian Republican Party, before moving towards the Organic Centre-left involving the Italian Socialist Party. The party was succeeded by a string of smaller parties, including the Italian People's Party, the Christian Democratic Centre, the United Christian Democrats, and the still active Union of the Centre. Former DC members are also spread among other parties, including the centre-right Forza Italia and the centre-left Democratic Party. It was a founding member of the European People's Party in 1976.

The party was founded as the revival of the Italian People's Party (PPI), a political party created in 1919 by Luigi Sturzo, a Catholic priest. The PPI won over 20% of the votes in the 1919 and 1921 general elections, but was declared illegal by the Fascist dictatorship in 1926 despite the presence of some Popolari in Benito Mussolini's first government.

As World War II was ending, the Christian Democrats started organising post-Fascist Italy in coalition with all the other mainstream parties, including the Italian Communist Party (PCI), the Italian Socialist Party (PSI), the Italian Liberal Party (PLI), the Italian Republican Party (PRI), the Action Party (Pd'A) and the Labour Democratic Party (PDL). In December 1945 Christian Democrat Alcide De Gasperi was appointed Prime Minister of Italy.

The Christian Democracy party was opposed to both Fascism and Communism. In elections Italians were voting based on a way of life, not just a political party. Christian ideals were usually paired with the idea of freedom.

In the 1946 general election the DC won 35.2% of the vote.

In May 1947 De Gasperi broke decisively with his Communist and Socialist coalition partners under pressure from U.S. President Harry Truman. This opened the way for a centrist coalition that included the Italian Workers' Socialist Party (PSLI), a centrist break-away from the PSI, as well as its usual allies, the PLI and the PRI.

In the 1948 general election the DC went on to win a decisive victory, with the support of the Catholic Church and the United States, and obtained 48.5% of the vote, its best result ever. Despite his party's absolute majority in the Italian Parliament, De Gasperi continued to govern at the head of the centrist coalition, which was successively abandoned by the Liberals, who hoped for more right-wing policies, in 1950 and the Democratic Socialists, who hoped for more leftist policies, in 1951.