Jacques Lucien Jean Delors (born 20 July 1925 in Paris) is a French economist and politician, the only person to have served two terms as President of the European Commission (between 1985 and 1995).
In the 1940s–1960s, Delors held a series of posts in French banking and state planning. Member of the French Confederation of Christian Workers, he participated in its secularization and the foundation of the French Democratic Confederation of Labour. In 1969, he became an adviser to the Gaullist Prime Minister Jacques Chaban-Delmas.
In 1974, Delors joined the French Socialist Party, with other left-wing Christians. He was one of the rare members of the party to be openly religious, thus challenging its long-standing secular tradition. He served in the European Parliament from 1979 to 1981. Under President François Mitterrand, Delors served as Economics and Finance Minister from 1981–1983, and Economics, Finance, and Budget Minister from 1983–1984. He advocated a pause in the social policies, a clear acceptance of the market economy, and an alignment with European social democracy. Mitterrand flirted many times with the idea of naming him Prime Minister, but never did.