The Man in Grey is a 1943 British film melodrama made by Gainsborough Pictures; it is considered to be the first of a series of period costume dramas now known as the "Gainsborough melodramas". It was directed by Leslie Arliss and produced by Edward Black from a screenplay by Arliss and Margaret Kennedy that was adapted by Doreen Montgomery from the 1941 novel The Man in Grey by Eleanor Smith. The film's sets were designed by Walter Murton.

The picture stars Margaret Lockwood, Phyllis Calvert, James Mason, Stewart Granger and Martita Hunt. It melds elements of the successful "women's pictures" of the time with distinctive new elements.