The Story of Louis Pasteur is a 1936 American black-and-white biographical film from Warner Bros., produced by Henry Blanke, directed by William Dieterle, that stars Josephine Hutchinson, Anita Louise and Donald Woods, and Paul Muni as the renowned scientist who developed major advances in microbiology, which revolutionized agriculture and medicine. The film's screenplay—which tells a highly fictionalized version of Pasteur’s life—was written by Pierre Collings and Sheridan Gibney, and Edward Chodorov (uncredited).

William Dieterle was a German-born actor and film director who emigrated to the United States in 1930 to leave a worsening political situation. He worked in Hollywood primarily as a director for much of his career, becoming a United States citizen in 1937. He moved back to Germany in the late 1950s.