They Drive by Night is a 1938 British black-and-white crime thriller film directed by Arthur B. Woods and starring Emlyn Williams as Shorty, an ex-con, and Ernest Thesiger as Walter Hoover, an ex-schoolmaster. It was produced by Warner Bros. - First National Productions and based on the 1938 novel They Drive by Night by James Curtis.

The picture is sometimes confused with the 1940 American film They Drive by Night based on the novel The Long Haul by A. I. Bezzerides and featuring George Raft and Humphrey Bogart. This British film also has the alternative title, perhaps only in the United States, of Murder on the Run.