Lionel Robert Jospin (French pronunciation: ​[ljɔnɛl ʁɔbɛʁ ʒɔspɛ̃]; born 12 July 1937) is a French politician who served as Prime Minister of France from 1997 to 2002.

Jospin was First Secretary of the Socialist Party from 1995 to 1997 and the party's candidate for President of France in the 1995 and 2002 elections. In 1995, he was narrowly defeated in the second round by Jacques Chirac. In 2002, he was eliminated in the first round after finishing behind both Chirac and far-right candidate Jean-Marie Le Pen, prompting him to announce his retirement from politics. In 2015, he was appointed to the Constitutional Council by National Assembly President Claude Bartolone.