A Village Romeo and Juliet is an opera by Frederick Delius, the fourth of his six operas. The composer, with his wife Jelka, wrote the English-language libretto based on the novellla Romeo und Julia auf dem Dorfe by Swiss author Gottfried Keller from his collection Seldwyla Folks (Die Leute von Seldwyla). Keller was inspired by a newspaper notice about the suicide of a young couple; he then set the story in a Swiss village torn by a feud between two neighbouring families, similar to Shakespeare's Romeo and Juliet.

Fennimore und Gerda (subtitled Two Episodes from the Life of Niels Lyhne in Eleven Pictures, RT I/8) is a German-language opera with four interludes, by the English composer Frederick Delius. It is usually performed and recorded in English, as Fennimore and Gerda in a translation by Philip Heseltine. The German libretto, by the composer himself, is based on the novel Niels Lyhne by the Danish writer Jens Peter Jacobsen. In neither German nor English is the libretto highly regarded; rather, the work is considered an "orchestral opera", limited in its dramatic appeal but voluptuous and engaging in its instrumental texture. Delius began writing Fennimore und Gerda in 1908; he finished in 1910, but the premiere, intended for the Cologne Opera, was delayed by the First World War and did not take place until 21 October 1919, and then by the Oper Frankfurt. It was the composer's last opera. The United States premiere of the work was staged by the Opera Theatre of Saint Louis in June 1981 with Kathryn Bouleyn as Fennimore and Kathryn Gamberoni as Gerda.

The musical compositions of Frederick Delius (1862–1934) cover numerous genres, in a style that developed from the early influences of composers such as Edvard Grieg and Richard Wagner into a voice that was uniquely Delius's. He began serious composition at a relatively advanced age (his earliest songs date to his early twenties), and his music was largely unknown and unperformed until the early 20th century. It was a further ten years before his work was generally accepted in concert halls, and then more often in Europe than in his home country, England. Ill-health caused him to give up composition in the early 1920s and he was silent for several years, before the services of a devoted amanuensis, Eric Fenby, enabled Delius to resume composing in 1928. The Delius-Fenby combination led to several notable late works.

Koanga is an opera written between 1896 and 1897, with music by Frederick Delius and a libretto by Charles Francis Keary, inspired partly by the book The Grandissimes: A Story of Creole Life by George Washington Cable (1880). Inspiration also came from Delius's own experiences as a young man, when his family sent him to work in Florida. It was Delius's third opera, and he thought better of it than of its predecessors, Irmelin and The Magic Fountain, because of the incorporation of dance scenes and his treatment of the choruses. Koanga is reputed to be the first opera in the European tradition to base much of its melodic material on African-American music.