1915 in France

• President: Raymond Poincaré
• President of the Council of Ministers: René Viviani (until 29 October), Aristide Briand (starting 29 October)

• 19 January – Georges Claude patents the neon discharge tube for use in advertising.
• 27 January – French military casualties begin arriving at the Hôpital Temporaire d'Arc-en-Barrois, established earlier in the month by British volunteers.
• 2 April – Croix de guerre instituted as a military decoration.{{cite web|first=Marc|last=Champenois|url=http://www.france-phaleristique.com/croix_guerre_1914-1918.htm|title=Croix de guerre 1914–1918|publisher=France-phaleristique.com|access-date=2014-05-23|language=fr}}
• 18 April – Roland Garros lands his aircraft behind enemy lines and is taken prisoner.
• 9 May – Second Battle of Artois starts.
• 15 May – Second Battle of Artois ends in stalemate.
• July – Adrian helmet first issued to the French Army.
• 10 September – Satirical weekly newspaper Le Canard enchaîné first published.
• 15 September – Third Battle of Artois begins.
• 25 September
• Battle of Loos begins, a major British offensive on the Western Front; first British use of poison gas during World War I.
• Second Battle of Champagne begins.
• 28 September – Battle of Loos ends with British retreat.
• 16 October – France declares war on Bulgaria.
• 4 November – Third Battle of Artois ends.
• 6 November – Second Battle of Champagne ends.

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• 13 January – Antoine Guillaumont, archaeologist and Syriac scholar (died 2000)
• 14 January – André Frossard, journalist and essayist (died 1995)
• 31 January – Henri Dobert, mechanical or electrician worker, World War II resistant (died 1943){{Cite web|url=http://maitron-fusilles-40-44.univ-paris1.fr/spip.php?article153393|title=DOBERT Henri, Jules, Eugène|access-date=May 26, 2017}}
• 18 February – Marcel Landowski, composer, biographer and arts administrator (died 1999)
• 1 March – Gustave Choquet, mathematician (died 2006)
• 7 March – Jacques Chaban-Delmas, Gaullist politician and Prime Minister (died 2000)
• 24 March – Eugène Martin, motor racing driver (died 2006)

• 2 April – Jean Sauvagnargues, politician and Minister (died 2002)
• 3 April – Paul Touvier, convicted of crime against humanity for collaborationism in Vichy France (died 1996)
• 20 April – Émile Muller, politician (died 1988)
• 6 May – Achille Zavatta, clown and circus operator (died 1993)
• 12 May – Frère Roger, founder of the Taizé community (died 2005)
• 21 June – Jean Bastien, soccer player (died 1969)

• 31 July – Henri Decaë, cinematographer (died 1987)
• 19 August – Alphonse Antoine, cyclist (died 1999)
• 22 October – Jules Bigot, soccer player and manager (died 2007)
• 22 October – Jean Despeaux, boxer, Olympic gold-medallist (died 1989)
• 9 November – André François, cartoonist (died 2005)
• 12 November – Roland Barthes, literary critic and philosopher (died 1980)
• 17 November – Michel Arnaud, General (died 1990)
• November – Jean Neuberth, abstract painter (died 1966)
• 17 December – André Claveau, singer (died 2003)
• 19 December – Édith Piaf, singer (died 1963)

• 8 April – Louis Pergaud, novelist (killed in action) (born 1882)
• 10 May – Gaston Cros, army officer and archaeologist (killed in action) (born 1861)
• 5 June – Henri Gaudier-Brzeska, painter and sculptor (killed in action) (born 1891)
• 25 July – Virginie Amélie Avegno Gautreau, socialite, model for Portrait of Madame X (born 1859)
• 31 August – Adolphe Pégoud, French acrobatic pilot, World War I fighter ace (killed in action) (born 1889)
• 15 September – Alfred Agache, painter (born 1843)
• 31 August – Adolphe Pégoud, acrobatic pilot, World War I fighter ace (killed in action) (born 1889)
• 11 October – Jean Henri Fabre, entomologist (born 1823)
• 25 November – Michel Bréal, philologist (born 1832)

• List of French films of 1915

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{{Year in Europe|1915}}

Category:1910s in France