Roger de La Fresnaye (11 July 1885 - 27 November 1925) was a French cubist painter.
He was born in Le Mans where his father, an officer in the French army, was temporarily stationed. The La Fresnaye's were an aristocratic family whose ancestral home, the Château de La Fresnaye, was near Falaise. His education was classically based, and was followed from 1903 to 1904 by studies at the Académie Julian in Paris, and from 1904 to 1908 at the Ecole des Beaux-Arts. From 1908 he studied at the Académie Ranson under Maurice Denis and Paul Sérusier, whose joint influence is evident in early works such as Woman with Chrysanthemums, 1909. This demonstrates the dreamlike symbolist ambience and stylistic character of work by the Les Nabis group.
From 1912 to 1914 he was a member of the Section d'Or group of artists, and his work demonstrates an individual response to cubism. He was influenced by Georges Braque and Pablo Picasso, but his work has a more decorative than structural feel and his prismatic colours reflect the influence of Robert Delaunay. He was a member of the Puteaux Group, an orphist offshoot of cubism led by Jacques Villon. His most famous work is The Conquest of the Air, 1913, and depicts a scene with himself and his brother outdoors with a balloon in the background.
La Fresnaye served in the French army in World War I and his health deteriorated rapidly after the war. He never recovered the physical energy to undertake sustained work. In the later paintings that he did create, he abandoned cubist spatial analysis for a more linear style. He died in Grasse in 1925.