The Amber Witch is an opera in four acts composed by William Vincent Wallace to an English libretto by Henry Fothergill Chorley, after Lady Duff-Gordon's translation of Meinold's Maria Schweidler: Die Bernsteinhexe.

[1][2] The libretto was based on a Gothic novel by Johann Wilhelm Meinhold, Maria Schweidler die Bernsteinhexe, which had been translated into English by Lady Duff-Gordon and published in 1844 as The Amber Witch.

[9] In 1866 at a concert to raise funds for Wallace's widow and children, two members of the original cast, Helen Lemmens-Sherrington and John Patey, sang three pieces from the Amber Witch – "Hark!

[12] The opera is set in the island of Usedom in 17th-century Pomerania (now Germany/Poland) during The Thirty Years War and tells the story of Mary, the "Amber Witch" of the title, and the daughter of the local pastor, Abraham Schweidler.

Elsie, however, is found dead at the foot of the stake, having taking poison administered by her erstwhile accomplice, the Commandant, and he in turn is disgraced and banished by order of the King.

It contains the extended love scene-duet beginning O Lady Moon from Act 2, performed by Aoife O'Sullivan (soprano), Dean Power (tenor), Una Hunt (piano).