The Saint in London is a 1939 British crime movie directed by John Paddy Carstairs and was based on the 1932 short story "The Million Pound Day" by Leslie Charteris. It stars George Sanders, Sally Gray, David Burns, Gordon McLeod, Henry Oscar, Athene Seyler, Ralph Truman, Norah Howard and was distributed by RKO Radio Pictures. It was the third movie of the series of eight movies.