Kashchey the Deathless (Russian: Кащей бессмертный, Kashchey bessmertnïy), a.k.a. Kashchey the Immortal, is a one-act opera in three scenes (styled a "little autumnal fairy tale") by Nikolai Rimsky-Korsakov. The libretto was written by the composer, and is based on a Russian fairy tale about Koschei the Deathless, an evil, ugly old wizard, who menaced principally young women. A similar fairy tale was also used by Igor Stravinsky (Rimsky-Korsakov's pupil) and Michel Fokine to create their iconic ballet, The Firebird.

Librettist Nicolai Rimsky-Korsakov (Based on a Russian fairy tale)
Date of composition 1902 (1901-1902)
Premiered 1902, December 25th (Solodovnikov Theater) in Moscow, Russia
Type Opera
Approx. duration 70 minutes
Spoken language Russian
Instruments Voice (Tenor) - Kashchey, the Deathless
Voice (Soprano) - Tsarevna, Princess Beloved Beauty
Voice (Baritone) - Prince Ivan-Korolevich
Voice (Mezzo-Soprano) - Kascheyevna, Daughter of Kashchey
Voice (Bass) - Storm-Bogatyr, the wind
Chorus/Choir - Invisible voices (Offstage)
Orchestra
Autotranslations beta Nikolaï Rimski-Korsakov: Kashchey the Deathless
Nikolaj Andreevič Rimskij-Korsakov: Kashchey the Deathless
Nikolai Andrejewitsch Rimski-Korsakow: Kashchey the Deathless