Colonel March Investigates is a 1953 British film directed by Cy Endfield. The film comprises the three pilot episodes of the TV series Colonel March of Scotland Yard that were filmed in 1952, starring Boris Karloff. These episodes were "Hot Money", "Death in the Dressing Room" and "The New Invisible Man".

The Colonel March TV series premiered first in the United States from Dec. 1954 to Spring of 1955, with a total of 26 episodes. It was broadcast on television in England in 1955 on Associated Television (ITV London, weekends), on 26 consecutive Saturday evenings from September 24, 1955 until March 17, 1956.