Henri Hoppenot (French pronunciation: [ɑ̃ʁi ɔpno]; October 25, 1891 – August 10, 1977) was a French diplomat and the last commissioner-general in Indochina (1955–1956). He also served as the French president of the United Nations Security Council from 1952 to 1955. In August 1914, he started in the Press Office of the Department of Foreign Affairs. He became friends with Alexis Leger (later Saint-John Perse, who would maintain a friendship of more than sixty years. When they entered the ministry, there had already been diplomat-writers: Jean Giraudoux, Paul Morand and Paul Claudel.