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 List of operas by composer List of prominent operas List of operas by title
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
List of Argentine operas List of Mexican operas List of North Korean operas
By medium
List of radio operas List of television operas
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