The Salon d'Automne (French: [salɔ̃ dotɔn]; English: Autumn Salon), or Société du Salon d'automne, is an art exhibition held annually in Paris, France. Since 2011, it is held on the Champs-Élysées, between the Grand Palais and the Petit Palais, in mid-October. The first Salon d'Automne was created in 1903 by Frantz Jourdain, with Hector Guimard, George Desvallières, Eugène Carrière, Félix Vallotton, Édouard Vuillard, Eugène Chigot and Maison Jansen.

Perceived as a reaction against the conservative policies of the official Paris Salon, this massive exhibition almost immediately became the showpiece of developments and innovations in 20th-century painting, drawing, sculpture, engraving, architecture and decorative arts. During the Salon's early years, established artists such as Pierre-Auguste Renoir threw their support behind the new exhibition and even Auguste Rodin displayed several works. Since its inception, works by artists such as Paul Cézanne, Henri Matisse, Paul Gauguin, Georges Rouault, André Derain, Albert Marquet, Jean Metzinger, Albert Gleizes and Marcel Duchamp have been shown. In addition to the 1903 inaugural exhibition, three other dates remain historically significant for the Salon d'Automne: 1905 bore witness to the birth of Fauvism; 1910 witnessed the launch of Cubism; and 1912 resulted in a xenophobic and anti-modernist quarrel in the National Assembly (France).