Roméo et Juliette is a symphonie dramatique, a large-scale choral symphony by French composer Hector Berlioz, which was first performed on 24 November 1839. The libretto was written by Émile Deschamps, and the completed work was assigned the catalogue numbers Op. 17 and H. 79. It is based on Shakespeare's play Romeo and Juliet; it is regarded as one of Berlioz's finest works, and it is among the most original in form. The score is Berlioz's most comprehensive and detailed programmatic piece.

Original Name Roméo et Juliette
Librettist Émile Deschamps (based on Shakespeare's play Romeo and Juliet)
Date of composition 1839
Premiered 1839, November 24th (Conservatoire) in Paris, France by Hector Berlioz
First published 1839
Dedicated to Niccolò Paganini
Type Symphony
Tonality B Minor
Catalogue H 79
Approx. duration 95 minutes
Spoken language French
Instruments Orchestra
Chorus/Choir - Mixed Chorus ;
Voice (Alto) - Juliette
Voice (Tenor) - Roméo
Voice (Bass) - Le Père Laurence
Arrangements Modest Mussorgsky: Romeo and Juliet transcription from Berlioz
Autotranslations beta Hector Berlioz: Romeo and Juliet en si mineur, H 79 "Symphonie dramatique avec chœurs (Dramatic symphony)"
Hector Berlioz: Romeo and Juliet in si minore, H 79 "Symphonie dramatique avec chœurs (Dramatic symphony)"
Hector Berlioz: Romeo and Juliet h-moll, H 79 "Symphonie dramatique avec chœurs (Dramatic symphony)"