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Johann Christian Bach (1735-1782): Temistocle

Michael Balfe (1808-1870):  The Bohemian Girl

Samuel Barber (1910-1981): Antony and Cleopatra, A Hand of Bridge, Vanessa

John Barnett (1802-1890): Mountain Sylph, Fair Rosamund, Farinelli

Gerald Barry (1952- ): The Bitter Tears of Petra von Kant

Béla Bartók (1881-1945): Bluebeard's Castle

Franco Battiato (1945- ): Genesi, Gilgamesh (Battiato Opera)|Gilgamesh, Messa arcaica, Il Cavaliere dell'Intelletto

Ludwig van Beethoven (1770-1827): Fidelio, Leonore

Vincenzo Bellini (1801-1835): Adelson e Salvini, Beatrice di Tenda, Bianca e Fernando (Bianca e Gernando), I Capuleti e i Montecchi, Norma, Il pirata, I puritani, La sonnambula, La straniera, Zaira

Ralph Benatzky (1884-1957): Bezauberndes Fräulein, Meine Schwester und ich, The White Horse Inn (Im weißen Rößl)

Georg Benda (1722-1795): Romeo und Julie, Walder

Julius Benedict (1804-1885): The Lily of Killarney

Arthur Benjamin (1893-1960): The Devil Take Her

Richard Rodney Bennett (1936- ): The Mines of Sulphur