Der König Kandaules is an opera in three acts by the Austrian composer Alexander von Zemlinsky. Its libretto was adapted by the composer from Franz Blei's German translation of the play Le roi Candaule by French author André Gide.

Der Zwerg, Op. 17, is an opera in one act by Austrian composer Alexander von Zemlinsky to a libretto by Georg C. Klaren, freely adapted from the short story "The Birthday of the Infanta" by Oscar Wilde.