Jean Louis Marie Le Pen (20 June 1928 – 7 January 2025), commonly known as Jean-Marie Le Pen (French: [ʒɑ̃maʁi lə pɛn]), was a French far-right politician who served as president of the National Front from 1972 to 2011 and honorary president of the same party from 2011 to 2015.

Le Pen focused on issues related to immigration to France, the European Union, traditional culture and values, law and order, and France's high rate of unemployment. His progression in the 1980s is known as the "lepénisation of minds" due to its noticeable effect on mainstream political opinion. His controversial speeches and his integration into public life made him a figure who polarized opinion. He was convicted of statements downplaying the Holocaust, and fined for incitement to discrimination regarding remarks made about Muslims in France.

Le Pen's longevity in politics and his five attempts to become president of France made him a major figure in French political life. His unexpected progress to the second round in the 2002 presidential election—when he was beaten in a landslide by incumbent Jacques Chirac—left its mark on French public life, and the "21st of April" is now a frequently used expression in France. A former Member of the European Parliament (MEP), Le Pen served as the honorary president of the National Front from 2011 to 2015. He was expelled from the party by his daughter Marine in 2015, after new controversial statements.