Lists of operas cover operas, a form of theatre in which music is essential, and the roles are portrayed by singers. There are general lists and lists by theme, country, medium and venue.
General
By theme
- List of operettas
- List of Christmas operas
- List of operas set in the Crusades
- List of Orphean operas
- Science fiction opera
By country
By medium
By venue
- Glyndebourne Festival Opera: history and repertoire, 1934–51
- Glyndebourne Festival Opera: history and repertoire, 1952–63
- List of Innsbruck Festival of Early Music productions
- List of performances of French grand operas at the Paris Opéra
- Salzburg Festival: history and repertoire, 1922–1926
- Salzburg Festival: history and repertoire, 1935–1937
- List of operas performed at the Santa Fe Opera
- List of works premiered at the Teatro Capranica
- Repertory of the Vienna Court Opera under Gustav Mahler
- List of operas performed at the Wexford Festival
This article includes an entertainment-related list of lists.