Doctor Knock

Knock ou le Triomphe de la médecine, better known in English as Doctor Knock or Dr. Knock, is a 1923 French-language satirical play in three acts about modern medicine, written by Jules Romains. It was performed for the first time at the Théâtre des Champs-Élysées in Paris on 15 December 1923 in a production by Louis Jouvet. It was published in the English-language under the title Doctor Knock in 1925 using a translation by Harley Granville-Barker. Barker's version had earlier premiered in London at the Royalty Theatre on 27 April 1924 in the first English language production of the play. Granville-Barker's translation was also used for the work's Broadway production at the American Laboratory Theatre in 1928.

The play was presented with set designs by a young Orson Welles in Dublin in 1932, translated into and performed in Esperanto the same year, and also broadcast on TV by BBC Television as early as 1938.