Jacques Santer (born 18 May 1937) is a Luxembourg politician who served as the 9th President of the European Commission from 1995 to 1999. He served as Finance Minister of Luxembourg from 1979 until 1989, and the 20th Prime Minister of Luxembourg from 1984 to 1995, as a member of the Christian Social People's Party, which has been the leading party in the Luxembourg government since 1979. As Prime Minister of Luxembourg he also led the negotiations on the Single European Act, which effectively set aside the 20-year-old Luxembourg Compromise.
