La Boutique fantasque, also known as The Magic Toyshop or The Fantastic Toyshop, is a ballet in one act conceived by Léonide Massine, who devised the choreography for a libretto written with the artist André Derain, a pioneer of Fauvism. Derain also designed the décor and costumes for the ballet. Ottorino Respighi wrote the music based on piano pieces by Gioachino Rossini. Its world premiere was at the Alhambra Theatre in London on 5 June 1919, performed by Sergei Diaghilev's Ballets Russes.

Leonid Fyodorovich Myasin, better known in the West by the French transliteration as Léonide Massine, was a Russian choreographer and ballet dancer. Massine created the world's first symphonic ballet, Les Présages, and many others in the same vein. Besides his "symphonic ballets," Massine choreographed many other popular works during his long career, some of which were serious and dramatic, and others lighthearted and romantic. He created some of his most famous roles in his own comic works, among them the Can-Can Dancer in La Boutique fantasque (1919), the Hussar in Le Beau Danube (1924), and, perhaps best known of all, the Peruvian in Gaîté Parisienne (1938). Today his oeuvre is represented by his son Lorca Massine, who stages his works around the world.