Dan'l Druce, Blacksmith is a play by W. S. Gilbert, styled "A Three-Act Drama of Puritan times". It opened at the Haymarket Theatre in London on 11 September 1876, starring Hermann Vezin, Johnston Forbes-Robertson and Marion Terry. The play was a success, running for about 100 performances and enjoying tours and several revivals. It was popular enough to be burlesqued in a contemporary work, Dan'l Tra-Duced, Tinker, at the Strand Theatre. In an 1894 revival, Nancy McIntosh played Dorothy.
The text notes that "An incident in the First Act was suggested by George Eliot's Novel Silas Marner."
Gilbert and Sullivan had already produced their hit one-act comic opera Trial by Jury by the time Dan'l Druce was written, but both Gilbert and Arthur Sullivan were still producing a considerable amount of work separately. The comic actor Edward Sothern had contacted Gilbert, in April 1875, noting that he was taking over the management of the Haymarket Theatre and needed a play for December, though Sothern did not plan to appear in the play. Gilbert was unable to complete the play on time and asked for an extension. Sothern then left to go on tour in America and wrote to Gilbert to be ready with another play by October, this time to feature him in a serious role. That play, The Ne'er-do-Weel, was also late and did not open until 1878.Hermann Vezin took the title role in Dan'l Druce in a cast featuring Johnston Forbes-Robertson and the 19-year-old Marion Terry as Dorothy.