Dame Clara Ellen Butt (1 February 1872 – 23 January 1936) was an English dramatic contralto and one of the most popular singers from the 1890s through to the 1920s. She had an exceptionally fine contralto voice and an agile singing technique, and impressed contemporary composers such as Saint-Saëns and Elgar; the latter composed his Sea Pictures, Op. 37 with her voice in mind.

Her main career was as a recitalist and concert singer. She appeared in only two operatic productions, both of Gluck's Orfeo ed Euridice. Later in her career she frequently appeared in recitals together with her husband, the baritone Kennerley Rumford. She made numerous recordings for the gramophone.