Captain Newman, M.D. is a 1963 American comedy drama film directed by David Miller and starring Gregory Peck, Tony Curtis, Angie Dickinson, Robert Duvall, Eddie Albert and Bobby Darin. The film was co-produced by Peck's Brentwood Productions and Curtis' Reynard Productions.

The film is based on the 1961 novel by Leo Rosten. It was loosely based on the World War II experiences of Rosten's close friend Ralph Greenson, M.D., while Greenson was a captain in the Army Medical Corps supporting the U.S. Army Air Forces and stationed at Yuma Army Airfield in Yuma, Arizona. Greenson is well known for his work on "empathy" and was one of the first in his field to seriously associate posttraumatic stress disorder (years before that terminology was developed) with wartime experiences. He was a director of the Los Angeles Psychoanalytic Institute and was a practicing Freudian. Greenson is perhaps best known for his patients, who included Marilyn Monroe, Frank Sinatra, Tony Curtis and Vivien Leigh.

Major filming took place at the U.S. Army's Fort Huachuca complex in southern Arizona, with the co-located Libby Army Airfield used to portray the fictional Colfax Army Air Field.

The story was used as a 1972 television pilot of the same title produced by Danny Thomas Productions starring Jim Hutton in the title role and Joan Van Ark as Lt Corum.