Lyc\u00e9e Louis-le-Grand alumni

André Lichtenberger (29 November 1870, Strasbourg – 23 March 1940, Paris) was a French novelist and sociologist. He held a Doctor of Letters in history. He was the son of theologian Frédéric Auguste Lichtenberger.

Valery Larbaud (29 August 1881 – 2 February 1957) was a French writer and poet.

Ferdinand Vincent-de-Paul Marie Brunetière (19 July 1849 – 9 December 1906) was a French writer and critic.

Louis Hémon (12 October 1880 – 8 July 1913), was a French writer, best known for his novel Maria Chapdelaine.

Abel Bonnard (19 December 1883 – 31 May 1968) was a French poet, novelist and politician.

Paul Andreu (10 July 1938 – 11 October 2018) was a French architect, known for his designs of multiple airports such as Charles de Gaulle Airport in Paris, and multiple prestigious projects in China, including the National Centre for the Performing Arts in Beijing.

Richard Descoings (French: [ʁiʃaʁ dekwɛ̃]; June 23, 1958 – April 3, 2012) was a French civil servant. He was serving as the Director of the Paris Institute of Political Studies (French: Institut d'études politiques de Paris or Sciences Po Paris), and as such as the Chief Administrator of the National Foundation of Political Science (Fondation nationale des sciences politiques, FNSP). These two entities are collectively referred to as Sciences Po (see Use of Sciences Po), and are two of the most prestigious public policy research and teaching bodies in Europe. Descoings was also a senior member of the Conseil d'État.

Robert Galley (11 January 1921 – 8 June 2012) was a French politician and member of the Free French Forces during World War II, for which he received the Ordre de la Libération.Galley was born in Paris on January 11, 1921. He was the son of a doctor. During the Fall of France in 1940, Galley was able to escape to the United Kingdom disguised as a Polish soldier. He joined the Free French Forces and was sent to North Africa, including the Battle of El Alamein. Galley was next stationed within General Philippe Leclerc de Hauteclocque's 2nd Armored Division, through which he participated in the Liberation of Paris and the Western Allied invasion of Germany. Galley later married General Leclerc de Hauteclocque's daughter, Jeanne Leclerc de Hauteclocque, following the end of World War II.After the war, Galley passed the entrance examinations to the French graduate engineering schools and was admitted to the Ecole Centrale Paris, from which he graduated in 1949.
He worked and held various positions in areas of petroleum, nuclear energy, and informatics. From 1955 to 1966, he headed the construction of various nuclear plants and research facilities for the CEA. He was the Deputy Information Officer to the French Prime Minister and Chairman of the Board of Directors of INRIA in 1967.
Galley began his political career in 1968. He served as a government minister for fourteen consecutive years within the administrations of three French Presidents - Charles de Gaulle, Georges Pompidou and Valéry Giscard d'Estaing. Galley held the portfolios of Minister of Infrastructure, Minister of Housing, Minister of Research and Space, Minister of Telecommunications, Minister of Transportation, Minister of Defence from 1973 to 1974, and Minister of Cooperation from 1976 to 1980.Galley also served as Mayor of Troyes from 1972 to 1995.Robert Galley died in Troyes, France, on June 8, 2012, at the age of 91.

Roger Caillois (French: [ʁɔʒe kajwa]; 3 March 1913 – 21 December 1978) was a French intellectual whose idiosyncratic work brought together literary criticism, sociology, ludology and philosophy by focusing on diverse subjects such as games and play as well as the sacred. He was also instrumental in introducing Latin American authors such as Jorge Luis Borges, Pablo Neruda and Miguel Ángel Asturias to the French public. After his death, the French Literary award Prix Roger Caillois was named after him in 1991.

André-Gustave Citroën (French: [ɑ̃dʁe ɡystav sitʁɔɛn]; 5 February 1878 – 3 July 1935) was a French industrialist and the founder of French automaker Citroën. He is also remembered for his application of double helical gears.