Der lila Domino (The Lilac Domino) is an operetta in three acts composed by Charles Cuvillier. The original German libretto is by Emmerich von Gatti and Bela Jenbach, about a gambling count who falls in love at a masquerade ball with a noblewoman wearing a lilac domino mask.
The operetta achieved far greater popularity in Britain and America than it did in Germany or France. Although The Lilac Domino became Cuvillier's greatest international hit, he won success in his native Paris with the operetta La reine s'amuse (1912; The Naughty Princess in London, 1920). He was popular in Germany before the First World War, and Der lila Domino was the first of two operettas that he wrote for German theatres.[1]