Sir Kenneth Ralph Barnes (11 September 1878 – 16 October 1957) was director of the Royal Academy of Dramatic Art (RADA) in London, from 1909-55. Born at Heavitree, near Exeter, the youngest of six children of Rev. Reginald Henry Barnes (1831–1889), Prebendary of Exeter Cathedral and Vicar of Heavitree, and his wife, Frances Mary Emily, née Nation. His sisters, Irene and Violet both became actresses.