Erminie is a comic opera in two acts composed by Edward Jakobowski with a libretto by Claxson Bellamy and Harry Paulton, based loosely on Charles Selby's 1834 English translation of the French melodrama, Robert Macaire. The story concerns an arranged engagement between Ermine and Ernest, but both are in love with someone else.
The piece first played in Birmingham, England, and then in London in 1885. A long-running production opened on Broadway in 1886, and the opera enjoyed unusual international success that endured into the twentieth century.