Juan Negrín López (Spanish pronunciation: [xwan neˈɣɾin]; 3 February 1892 – 12 November 1956) was a Spanish politician and physician. He was a leader of the Spanish Socialist Workers' Party (Spanish: Partido Socialista Obrero Español, PSOE) and served as finance minister and prime minister of the left-leaning Popular Front government of the Second Spanish Republic during the Spanish Civil War. He was the last Loyalist premier of Spain (1937–1939), leading the Republican forces defeated by the Nationalists under General Francisco Franco. He was President of the Council of Ministers of the Second Spanish Republic and the Spanish Republican government in exile between 1937 and 1945. He died in exile in Paris, France.