Henry Brougham Farnie (8 April 1836 – 21 September 1889), often called H. B. Farnie, was a British librettist and adapter of French operettas and an author. Some of his English-language versions of operettas became record-setting hits on the London stage of the 1870s and 1880s, strongly competing with the Gilbert and Sullivan operas being played at the same time.