Le Fils des étoiles is an incidental music score composed in December 1891 by Erik Satie to accompany a three-act poetic drama of the same name by Joséphin Péladan. It is a key work of Satie's "Rosicrucian" period (1891–1895) and played a role in his belated "discovery" by the French musical establishment in the 1910s.

Eric Alfred Leslie Satie, who signed his name Erik Satie after 1884, was a French composer and pianist. He was the son of a French father and a British mother. He studied at the Paris Conservatoire, but was an undistinguished student and obtained no diploma. In the 1880s he worked as a pianist in café-cabaret in Montmartre, Paris, and began composing works, mostly for solo piano, such as his Gymnopédies and Gnossiennes. He also wrote music for a Rosicrucian sect to which he was briefly attached.