Adaptations
- Felix Mendelssohn, after reading (and hating) the play, was commissioned to write a Concert Overture based on it, his Opus 95.
- Irish actor and dramatist Edmund Falconer translated Ruy Blas in 1858. It was performed at the Princess Theatre, London, in late 1858.
- W. S. Gilbert wrote a burlesque of the play, by the same name, in Warne's Christmas Annual for 1866.
- An opera of the same name, by Filippo Marchetti with a libretto by Carlo d'Ormeville was produced at La Scala in Milan in 1869.
- A musical comedy, Ruy Blas and the Blasé Roué, by A. C. Torr and Herbert F. Clark with music by Meyer Lutz, premiered in 1889.
- A 1947 movie, again called Ruy Blas, was directed by Pierre Billon, adapted by Jean Cocteau, and starring Jean Marais, Danielle Darrieux and Marcel Herrand.
- A 1971 movie, La folie des grandeurs, directed by Gérard Oury, adapted by Danièle Thomson, and starring Alice Sapritch, Louis de Funès and Yves Montand, is also based on it.
- It also formed the basis for a 2002 telefilm by Jacques Weber, again called Ruy Blas.
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