The Pirates of Penzance
（重定向自Pirates Of Penzance）
![Drawing of the Act I finale](/Images/godic/202502/03/Drawing_of_Act_I_Finale2233.jpg")
![The Pirate Publisher – An International Burlesque that has the Longest Run on Record, from Puck, 1886: Gilbert is seen as one of the British authors whose works are stolen by the pirate publisher.](/Images/godic/202502/03/Joseph_Ferdinand_Keppler_-_The_Pirate_Publisher_-_Puck_Magazine_-_Restoration_by_Adam_Cuerden2233.jpg")
![Poster for the copyright performance at Paignton](/Images/godic/202502/03/PiratesPenzance18792233.gif")
![George Grossmith as General Stanley, wearing Wolseley's trademark moustache](/Images/godic/202502/03/Grossmith_as_Gen_Stanley2234.jpg")
The Pirates of Penzance; or, The Slave of Duty is a comic opera in two acts, with music by Arthur Sullivan and libretto by W. S. Gilbert. The opera's official premiere was at the Fifth Avenue Theatre in New York City on 31 December 1879, where the show was well received by both audiences and critics. Its London debut was on 3 April 1880, at the Opera Comique, where it ran for 363 performances, having already been playing successfully for over three months in New York.