Rusalka (Russian: Русалка, romanized: Rusálka listenⓘ) is an opera in four acts, six tableaux, by Alexander Dargomyzhsky, composed during 1848-1855.

The conductor was Eduard Nápravník; the Prince was sung by Fyodor Petrovich Komissarzhevsky, the Princess by Darya Leonova, Miller by Osip Petrov, and Natasha by Yulya Platonova.

This type of recitative consists of lyrical utterances which change continuously according to the dramatic situation, with likewise varied accompaniment in the orchestra.

It was mounted at the Wexford Opera Festival in 1997 with Anna Maria Chiuri in the title role, and Alessandro Safina as the prince and Maxim Mikhailov as the miller.

The cast included Helene Williams (Natasha), Gregory Mercer (the Prince), Perri Sussman (the Princess), David Anchel (the Miller & the Matchmaker), Kathryn Wieckhorst (Olga), Jackie Bakewell (Rusalochka), and The Metropolitan Philharmonic Chorus, conducted from the piano by Leonard Lehrman.

Natacha, daughter of the miller awaits the prince who she is in love with; she ignores her father's warnings about such an alliance.

While peasants sing and dance for the miller the prince and Natacha go in the mill, where she discovers the truth but then reveals to him that she is carrying his child.

The miller suddenly bursts from the forest and pushes the prince into the deep river, to the laughter of the rusalkas, who present his body to their queen.

Act 1 Other operas featuring rusalki as characters include Rimsky-Korsakov's May Night and Dvořák's Rusalka.