Giovanni Giolitti (Italian pronunciation: [dʒoˈvanni dʒoˈlitti]; 27 October 1842 – 17 July 1928) was an Italian statesman. He was the prime minister of Italy five times between 1892 and 1921. He is the longest-serving democratically elected prime minister in Italian history, and the second-longest serving overall after Benito Mussolini. A prominent leader of the Historical Left and the Liberals, he is widely considered one of the most wealthy, powerful and important politicians in Italian history; due to his dominant position in Italian politics, Giolitti was accused by critics of being an authoritarian leader and a parliamentary dictator.
Giolitti was a master in the political art of trasformismo, the method of making a flexible, centrist coalition of government which isolated the extremes of the Left and the Right in Italian politics after the unification. Under his influence, the Liberals did not develop as a structured party and were a series of informal personal groupings with no formal links to political constituencies. The period between the start of the 20th century and the start of World War I, when he was prime minister and Minister of the Interior from 1901 to 1914, with only brief interruptions, is often referred to as the "Giolittian Era".