Dr. O'Dowd is a 1940 British drama film directed by Herbert Mason, produced by Sam Sax for Warner Bros and starring Shaun Glenville, Peggy Cummins, Felix Aylmer and Irene Handl.

Marius eventually manages to redeem himself by saving Stephen's life during an outbreak of diphtheria.

[4] Most of the filming for Dr. O'Dowd took place at the Warner Bros. studios in Teddington, with outdoor sequences shot in Cumberland in north west England and in County Wicklow, Ireland.

Warner Bros. employed a number of different experts as advisers to ensure the film was realistic, including a doctor, a nurse, an angler and a billiards player.

[4] Dr. O'Dowd was distributed by the production studio Warner Bros. in 1940, with an initial trade showing in London on 16 January 1940.

"[4] Kinematograph Weekly summed up its positive response to the film as: "Good story, competent treatment, captivating juvenile angle, effective dramatic twists, good comedy and excellent atmosphere.