and summer seasons, and music festivals which have opera productions.
| Name of Opera festival
| Principal theatre
| Location |
| Arena di Verona Festival
| Arena di Verona
| Verona, Italy |
| Aspen Music Festival
| Wheeler Opera House
| Aspen, Colorado, USA |
| Aspendos International Opera and Ballet Festival
| Aspendos Theatre
| Antalya, Turkey |
| Bad Hersfelder Opernfestspiele
| Stiftsruine Bad Hersfeld
| Bad Hersfeld, Germany |
| Bayreuth Festival
| Bayreuth Festspielhaus
| Bayreuth, Germany |
| Bregenz Festival
| Seebühne
| Bregenz, Austria |
| Buxton Festival
| Buxton Opera House
| Buxton, England, UK |
| Caramoor International Music Festival
| Venetian Theatre
| Katonah, New York, USA |
| Central City Opera
| Opera House
| Central City, Colorado, USA |
| Chautauqua Opera
| Norton Memorial Hall
| Chautauqua, New York, USA |
| Chorégies d'Orange
| Théâtre Antique d'Orange
| Orange, France |
| Dalhalla Opera
| Draggängarna
| Rättvik, Sweden |
| Drottningholm
| Drottningholm Slottstheater
| Stockholm, Sweden |
| Edinburgh International Festival
| Edinburgh Festival Theatre
| Edinburgh, Scotland, UK |
| Festspiel Baden-Baden
| Festspielhaus Baden-Baden
| Baden-Baden, Germany |
| Festival Amazonas de Ópera
| Teatro Amazonas
| Manaus, Amazonas, Brazil |
| Festival de Radio France et Montpellier
| Opéra Berlioz at Le Corum
| Montpellier, France |
| Festival dei Due Mondi
| Teatro Caio Melisso
| Spoleto, Italy |
| Festival della Valle d'Itria
| Palazzo Ducale
| Martina Franca, Italy |
| Festival d'Aix-en-Provence
| Théâtre de l'Archevêché
| Aix-en-Provence, France |
| Festival Puccini
| Teatro dei Quattromila
| Torre del Lago, Italy |
| Fort Worth Opera
| Bass Performance Hall
| Fort Worth, Texas, USA |
| Garsington Opera
| Garsington Manor
| Garsington, England, UK |
| George Enescu Festival
| Romanian Athenaeum
| Bucharest, Romania |
| Glimmerglass Opera
| Alice Busch Opera Theater
| Cooperstown, New York, USA |
| Glyndebourne Festival Opera
| Glyndebourne Opera House
| Glyndebourne, England, UK |
Innsbrucker Festwochen der Alten Musik
(Innsbruck Festival of Early Music)
| Tiroler Landestheater
| Innsbruck, Austria |
| International Gilbert and Sullivan Festival
| Buxton Opera House
| Buxton, England, UK |
| Lake George Opera
| Spa Little Theater
| Saratoga Springs, New York, USA |
| Macerata Opera
| Sferisterio
| Macerata, Italy |
| Maggio Musicale Fiorentino
| Teatro Communale and Teatro della Pergola
| Florence, Italy |
Munich Opera Festival
(Münchner Opern-Festspiele)
| Nationaltheater München
| Munich, Germany |
| Opera Barga Festival
| Teatro dei Differenti
| Barga, Italy |
| Opéra de Baugé
| Les Capucins
| Baugé, France |
| Opera Holland Park
| Holland Park Theatre
| London, England, UK |
| Opéra Les Azuriales
| Villa Ephrussi de Rothschild
| Cap Ferrat, France |
| Opera Theatre of Saint Louis
| Loretto-Hilton Theater
| St. Louis, Missouri, USA |
Ponte de Lima Festival of Opera and Classical Music 
| Teatro Diogo Bernardes
| Ponte de Lima, Portugal |
| Ravenna Festival
| Teatro Communale Alighieri
| Ravenna, Italy |
| Ravinia Festival
| Ravinia Park
| Highland Park, Illinois, USA |
| Rossini Opera Festival
| Teatro Rossini
| Pesaro, Italy |
| Salzburger Osterfestspiele (Salzburg Easter Festival)
| Großes Festspielhaus
| Salzburg, Austria |
| Salzburg Summer Festival
| Großes Festspielhaus
| Salzburg, Austria |
Salzburger Pfingstfestspiele
(Salzburg Whitsun Festival)
| Großes Festspielhaus
| Salzburg, Austria |
| Santa Fe Opera
| The Crosby Theater
| Santa Fe, New Mexico, USA |
| Savonlinna Opera Festival
| Olavinlinna Castle
| Savonlinna, Finland |
| Schwetzingen Festival
| Schwetzingen Castle
| Schwetzingen, Germany |
| Spoleto Festival USA
| Gaillard Municipal Auditorium & Memminger Auditorium
| Charleston, South Carolina, USA |
| Tanglewood Music Festival
| Tanglewood Music Center
| Lenox, Massachusetts, USA |
| Tiroler Festspiele Erl
| Passionsspielhaus
| Erl, Austria |
| Wexford Festival Opera
| Theatre Royal
| Wexford, Ireland |
| Wiener Festwochen
| Theater an der Wien
| Vienna, Austria |
| Wolf Trap Opera Company
| Filene Center
| Vienna, Virginia, USA |
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