Bertram Wagstaff Mills (August 1873 – 16 April 1938) was a British circus owner originally from Paddington, London, who ran the Bertram Mills Circus. His circus became famous in the UK for its Christmas shows at Olympia in West London televised in 1938, 1946 and 1947. His troupe was the last to perform with live animals on the Drury Lane Theatre stage.