Ruddigore; or, The Witch's Curse, originally called Ruddygore, is a comic opera in two acts, with music by Arthur Sullivan and libretto by W. S. Gilbert. It is one of the Savoy Operas and the tenth of fourteen comic operas written together by Gilbert and Sullivan. It was first performed by the D'Oyly Carte Opera Company at the Savoy Theatre in London on 22 January 1887.
The first night was not altogether a success, as critics and the audience felt that Ruddygore (as it was originally spelled) did not measure up to its predecessor, The Mikado. After some changes, including respelling the title, it achieved a run of 288 performances. The piece was profitable, and the reviews were not all bad. For instance, the Illustrated London News praised the work of both Gilbert and, especially, Sullivan: "Sir Arthur Sullivan has eminently succeeded alike in the expression of refined sentiment and comic humour. In the former respect, the charm of graceful melody prevails; while, in the latter, the music of the most grotesque situations is redolent of fun."
There were further changes and cuts, including a new overture, when Rupert D'Oyly Carte revived Ruddigore after the First World War. Although never a big money-spinner, it remained in the repertoire until the company closed in 1982. A centenary revival at Sadler's Wells in London restored the opera to almost its original first-night state. In 2000, Oxford University Press published a scholarly edition of the score and libretto, edited by Sullivan scholar David Russell Hulme. This restores the work as far as possible to the state in which its authors left it and includes a substantial introduction that explains many of the changes, with appendices containing some music deleted early in the run. After the expiration of the British copyright on Gilbert and Sullivan works in 1961, and especially since the Sadler's Wells production and recording, various directors have experimented with restoring some or all of the cut material in place of the 1920s D'Oyly Carte version.